Angular Acceleration of a seesaw problem? help please thanks!
I need help with this problem.thanks so much! show steps!
picture related to problem:http://i303.photobucket.com/albums/nn129/wvmounti31/picturenew.jpg1.) Find the angular acceleration alpha of the seesaw?
Express your answer in terms of some or all of the quantities m_1,m_2, m_bar, l, as well as the acceleration due to gravity g.
Note: the swing bar itself has mass m_bar.
2.) In what direction will the seesaw rotate and what will the signof the angular acceleration be?
a.) The rotation is in the clockwise direction and the angularacceleration is positive.
b.) The rotation is in the clockwise direction and the angularacceleration is negative.
c.) The rotation is in the counterclockwise direction and theangular acceleration is positive.
d.) The rotation is in the counterclockwise direction and theangular acceleration is negative.
thanks again!
Homework Answers
We know that :Torque τ = I α∴ Angular acceleration is :α = τ /IBut Torque τ = Force *Perpendicular distance= m g* ( L/2)(sincefrom the diagram )=(m1 + m2 + mbar ) g* L / 2∴α=[( m1 + m2+mbar ) g * L ] / 2 I(b)a.) Therotation is in the clockwise direction and the angular accelerationis positive.Hope this helps u!
Learning Goal: To understand and apply the formula τ=Iα to rigid objects rotating about a fixed axis. To fin...
Learning Goal:
To understand and apply the formula
τ=Iα to rigid objects rotating about a
fixed axis.
To find the acceleration a of a particle of mass
m, we use Newton's second law: F⃗
net=ma⃗ , where F⃗ net is the net force
acting on the particle.
To find the angular acceleration α of a rigid object
rotating about a fixed axis, we can use a similar formula:
τnet=Iα, where τnet=∑τ
is the net torque acting on the object and...
Part E : Find the magnitude of the angular acceleration. Please and thank you. The seesaw is pivoted in the middle,...
Torque and Angular Acceleration Learning Goal: To understand and apply the formula τ= Iα to rigid objects rotating about a fixed axis. To find the acceleration a of a particle of mass m, we use Newton's second law. Fnet =ma, where Fnet is the net force acting on the particle. To find the angular acceleration a of a rigid object rotating about a fixed axis, we can use a similar formula: Tnet = Ia, where Tnet=∑T is the net torque acting on the object...
Bar OC rotates with a clockwise angular velocity ωOC = 2.2 rad/s and a counterclockwise angular acceleration αOC = 2.3 rad/s2. The bar OC is a slotted member which accommodates the pin A attached to t...
Bar OC rotates with a clockwise angular velocityωOC = 2.2 rad/s and a counterclockwise angular
acceleration αOC = 2.3 rad/s2. The
bar OC is a slotted member which accommodates the pin A
attached to the sector. Determine the angular velocity ωand the angular acceleration α of the sector. The angular
velocity and the angular acceleration are positive if
counterclockwise, negative if clockwise.
i would appreciate a quick answer please, thank you 2. A small sphere attached to a...
i
would appreciate a quick answer please, thank you
2. A small sphere attached to a light rigid rod rotates about an axis perpendicular to and fixed to the other end of the rod. Relative to the positive direction of the axis of rotation, the angular positions of the sphere are negative, its angular velocity is negative, and its angular acceleration is positive. The sphere is a. rotating clockwise and slowing down. b. rotating counterclockwise and slowing down. c. rotating...
Problem 16.110 9 of 11> Part A The sider block has the motion shown. Suppose that r 140 mm and h ...
please show steps.
Problem 16.110 9 of 11> Part A The sider block has the motion shown. Suppose that r 140 mm and h 500 mm (Figure 1) Determine the angular velocity of the wheel at this instant measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the angular velocity is clockwise. 16.0 rad/s Correct Part B Figure 1of1 Determine the angular acceleration of the wheel at...
Chapter 5, Problem 5/120 If link AB of the four-bar linkage has a constant counterclockwise angular...
Chapter 5, Problem 5/120 If link AB of the four-bar linkage has a constant counterclockwise angular velocity of 39 rad/s during an interval which includes the instant represented, determine the angular acceleration of AO (positive if counterclockwise, negative if clockwise) and the acceleration of point D. 75 mm 150 mm 0 115 115 Answers: GAO = rad/s2 aD = i) m/s2
The two 4- lb rods EF and HI are fixed (welded) to the link AC at E . At the instant θ = 30 ∘ link AB has an angular velocity ω = 5 rad/s and an angular acceleration a = 8 rad/ s 2 as shown in (Figure...
The two 4- lb rods EF and HI are fixed (welded) to the link AC
at E . At the instant θ = 30 ∘ link AB has an angular velocity ω =
5 rad/s and an angular acceleration a = 8 rad/ s 2 as shown in
(Figure 1).
Part A
Determine the internal axial force Ex which
the bar AC exerts on FE at
E using scalar notation.
Express your answer to three significant figures and include the...
PROBLEM 2 Knee Extension - The angular motion of the lower leg about the knee joint,...
PROBLEM 2 Knee Extension - The angular motion of the lower leg about the knee joint, and the forces and torques produced by the muscles crossing the knee joint during knee flexions and extensions have been investigated by a number of researchers utilizing different experimental techniques. One of these techniques is discussed here. Consider the person illustrated in Fig. 10.12. The test subject is sitting on a table, with the back placed against a back rest and the lower legs...
PLEASE HELP SOLVE WITH MATLAB LANGUGE. Below are hints to the problem. THANKS A LOT!! 2...
PLEASE HELP SOLVE WITH MATLAB LANGUGE.
Below are hints to the problem. THANKS A LOT!!
2 Coriolis Force In a rotating frame-of-reference,the equations of motion of a particle, written in co- ordinates fixed to the frame, have additional terms due to the rotation of the frame itself Consider such a rotating frame, with its origin at the center of rotation.In these coor- dinates, the equations of motion for a point-mass subjected to forces F, and F S m, are F(0...
the question is in last picture. i provided the lab content... I need guidance. thank you....
the question is in last picture. i provided the lab content...
I need guidance. thank you.
INVESTIGATION 10 ROTATIONAL MOTION OBJECTIVE To determine the moment of inertia I of a heavy composite disk by plotting measured values of torque versus angular acceleration. THEORY Newton's second law states that for translational motion (motion in a straight line) an unbalanced force on an object results in an acceleration which is proportional to the mass of the object. This means that the heavier...
Learning Goal:
To understand and apply the formula
τ=Iα to rigid objects rotating about a
fixed axis.
To find the acceleration a of a particle of mass
m, we use Newton's second law: F⃗
net=ma⃗ , where F⃗ net is the net force
acting on the particle.
To find the angular acceleration α of a rigid object
rotating about a fixed axis, we can use a similar formula:
τnet=Iα, where τnet=∑τ
is the net torque acting on the object and...
Bar OC rotates with a clockwise angular velocityωOC = 2.2 rad/s and a counterclockwise angular
acceleration αOC = 2.3 rad/s2. The
bar OC is a slotted member which accommodates the pin A
attached to the sector. Determine the angular velocity ωand the angular acceleration α of the sector. The angular
velocity and the angular acceleration are positive if
counterclockwise, negative if clockwise.
i
would appreciate a quick answer please, thank you
2. A small sphere attached to a light rigid rod rotates about an axis perpendicular to and fixed to the other end of the rod. Relative to the positive direction of the axis of rotation, the angular positions of the sphere are negative, its angular velocity is negative, and its angular acceleration is positive. The sphere is a. rotating clockwise and slowing down. b. rotating counterclockwise and slowing down. c. rotating...
please show steps.
Problem 16.110 9 of 11> Part A The sider block has the motion shown. Suppose that r 140 mm and h 500 mm (Figure 1) Determine the angular velocity of the wheel at this instant measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular velocity is counterclockwise and negative value if the angular velocity is clockwise. 16.0 rad/s Correct Part B Figure 1of1 Determine the angular acceleration of the wheel at...
Chapter 5, Problem 5/120 If link AB of the four-bar linkage has a constant counterclockwise angular velocity of 39 rad/s during an interval which includes the instant represented, determine the angular acceleration of AO (positive if counterclockwise, negative if clockwise) and the acceleration of point D. 75 mm 150 mm 0 115 115 Answers: GAO = rad/s2 aD = i) m/s2
The two 4- lb rods EF and HI are fixed (welded) to the link AC
at E . At the instant θ = 30 ∘ link AB has an angular velocity ω =
5 rad/s and an angular acceleration a = 8 rad/ s 2 as shown in
(Figure 1).
Part A
Determine the internal axial force Ex which
the bar AC exerts on FE at
E using scalar notation.
Express your answer to three significant figures and include the...
PROBLEM 2 Knee Extension - The angular motion of the lower leg about the knee joint, and the forces and torques produced by the muscles crossing the knee joint during knee flexions and extensions have been investigated by a number of researchers utilizing different experimental techniques. One of these techniques is discussed here. Consider the person illustrated in Fig. 10.12. The test subject is sitting on a table, with the back placed against a back rest and the lower legs...
PLEASE HELP SOLVE WITH MATLAB LANGUGE.
Below are hints to the problem. THANKS A LOT!!
2 Coriolis Force In a rotating frame-of-reference,the equations of motion of a particle, written in co- ordinates fixed to the frame, have additional terms due to the rotation of the frame itself Consider such a rotating frame, with its origin at the center of rotation.In these coor- dinates, the equations of motion for a point-mass subjected to forces F, and F S m, are F(0...
the question is in last picture. i provided the lab content...
I need guidance. thank you.
INVESTIGATION 10 ROTATIONAL MOTION OBJECTIVE To determine the moment of inertia I of a heavy composite disk by plotting measured values of torque versus angular acceleration. THEORY Newton's second law states that for translational motion (motion in a straight line) an unbalanced force on an object results in an acceleration which is proportional to the mass of the object. This means that the heavier...
Most questions answered within 3 hours.
-
Oakdale Fashions, Inc. had $245,000 in 2018 taxable income.
Using the tax schedule in Table 2.3...
asked 13 minutes ago -
The marketing class at CSUS had an average score of 150. An
educational analyst determined that...
asked 1 hour ago -
Justin Case has purchased a $250 000 home by putting 20 % down
and taking out...
asked 1 hour ago -
1. In a labor market, marginal cost for a firm is
____________.
a. recruiting cost
b....
asked 2 hours ago -
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 2 hours ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 3 hours ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 4 hours ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 5 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 5 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 5 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 5 hours ago -
2. An AC generator has 80 rectangular loops on
its armature. Each loop is 11 cm...
asked 5 hours ago