Homework Answers
U represent the INITIAL
VELOCITY of respective balls..
V represent the FINAL VELOCITY of respective balls.
Add Answer to:
11 6 Cord 1) Body A in the figure is a small wooden sphere which weighs...
A 1-lb all is attached to a 30” long cord as shown. The horizontal cord and...
A 1-lb all is attached to a 30” long cord as shown. The
horizontal cord and ball are released from rest. When the cord
reaches a vertical position, the ball strikes a 5-lb steel block
initially at rest on a frictionless surface. If the coefficient of
restitution between the ball and the block is 0.9, what is the
speed of the ball before and after impact? What is the speed of the
block just after impact?
--- 30 in
A 5 lb. pendulum (1) is released from rest when the angle is 0 ̊. A...
A 5 lb. pendulum (1) is released from rest when the angle is 0
̊. A 2-lb crate (2) is at originally at rest on a rough surface µ =
0.2. The pendulum strikes the crate at an angle 90 ̊ with a
coefficient of restitution of 0.8. The crate slides on a
frictionless curve surface until it became to rest by a linear
spring (D). If the cord has L= 2.25 ft long;
1.Determine the force of tension of...
Blocks A and B each weigh 0.8 lb and block C weighs 2.4 lb. The coefficient of friction between...
Blocks A and B each weigh 0.8 lb and block C weighs 2.4 lb. The coefficient of friction between the blocks and the plane is uk = 0.30. Initially block A is moving at a speed Co = 15 ft/s and blocks B and C arc at rest (Fig. 1). After A strikes B and B strikes C, all three blocks come to a stop in the positions shown (Fig. 2). Determine (a) the coefficients of restitution between A and...
Disk A weighs 1.80 lbs with a radius of 1.20 in and is sliding on a...
Disk A weighs 1.80 lbs with a
radius of 1.20 in and is sliding on a
smooth horizontal plane (i.e., parallel to the ground) as
shown in the figure. Disk B weighs 10.9
lbs with a radius of 2.20
in and is initially at rest. The coefficient of
restitution between the two disks is 0.300.
What is the angle (degrees) between the positive y
axis and the line of impact?
What is the speed of disk B after the
impact?...
1. A block of mass m moves without friction on a horizontal plane. The body is...
1. A block of mass m moves without friction on a horizontal plane. The body is connected to a massless string which slides without friction over a fixed pulley. A massless pulley is fastened at the other end of the string. Over the pulley, which can rotate without friction, hangs another string which has two bodies of masses 3m and m fastened to its two ends respectively. Their motions are supposed to be strictly vertical. The acceleration of gravity is...
1. The slender bar AB weighs 60 lb and moves in the vertical plane, with its...
1. The slender bar AB weighs 60 lb and moves in the vertical plane, with its ends constrained to follow the smooth horizontal and vertical guides. If the 30 - Ib force is applied at A with the bar initially at rest in the position for which =30°, calculate the resulting angular acceleration of the bar and the forces on the small end rollers A and B. // 2 BO
As shown in Figure 3(a), a wooden block B with mass mg 2.4 kg on a rough inclined plane is connected to a massless sp...
As shown in Figure 3(a), a wooden block B with mass mg 2.4 kg on a rough inclined plane is connected to a massless spring (k 160 N/m) by a massless cord passing over a pulley P of radius R 0.25 m and mass M, 0.60 kg. The angle of the inclined plane is 0 37 and the coefficients of static and kinetic frictions are g 0.35 and A 0.30 respectively The frictional force at the axle of the pulley...
Problem#7 Two boxes are connected by a weightless cord running over a very light frictionless pulley...
Problem#7 Two boxes are connected by a weightless cord running over a very light frictionless pulley as shown in the figure. Box A, of mass 8.0 kg, is initially at rest on the top of the table. The coefficient of kinetie friction between box A and the table is 0.10. Box B has a mass of 15.0kg. and the system begins to move just after it is released. (a Draw the free-body diagrams for each of the boxes, identifyi each...
2. A small box of mass m is kept on a fixed, smooth sphere of radius...
2. A small box of mass m is kept on a fixed, smooth sphere of radius R at a position where the radius through the box makes an angle of 30° with the vertical. The box is released from the position. (a) What is the force exerted by the sphere on the box just after the release? (b) Find the distance travelled by the box before it leaves contact with the sphere. 3. A particle is suspended from a fixed...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down t...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
A 1-lb all is attached to a 30” long cord as shown. The
horizontal cord and ball are released from rest. When the cord
reaches a vertical position, the ball strikes a 5-lb steel block
initially at rest on a frictionless surface. If the coefficient of
restitution between the ball and the block is 0.9, what is the
speed of the ball before and after impact? What is the speed of the
block just after impact?
--- 30 in
A 5 lb. pendulum (1) is released from rest when the angle is 0
̊. A 2-lb crate (2) is at originally at rest on a rough surface µ =
0.2. The pendulum strikes the crate at an angle 90 ̊ with a
coefficient of restitution of 0.8. The crate slides on a
frictionless curve surface until it became to rest by a linear
spring (D). If the cord has L= 2.25 ft long;
1.Determine the force of tension of...
Disk A weighs 1.80 lbs with a
radius of 1.20 in and is sliding on a
smooth horizontal plane (i.e., parallel to the ground) as
shown in the figure. Disk B weighs 10.9
lbs with a radius of 2.20
in and is initially at rest. The coefficient of
restitution between the two disks is 0.300.
What is the angle (degrees) between the positive y
axis and the line of impact?
What is the speed of disk B after the
impact?...
1. A block of mass m moves without friction on a horizontal plane. The body is connected to a massless string which slides without friction over a fixed pulley. A massless pulley is fastened at the other end of the string. Over the pulley, which can rotate without friction, hangs another string which has two bodies of masses 3m and m fastened to its two ends respectively. Their motions are supposed to be strictly vertical. The acceleration of gravity is...
1. The slender bar AB weighs 60 lb and moves in the vertical plane, with its ends constrained to follow the smooth horizontal and vertical guides. If the 30 - Ib force is applied at A with the bar initially at rest in the position for which =30°, calculate the resulting angular acceleration of the bar and the forces on the small end rollers A and B. // 2 BO
As shown in Figure 3(a), a wooden block B with mass mg 2.4 kg on a rough inclined plane is connected to a massless spring (k 160 N/m) by a massless cord passing over a pulley P of radius R 0.25 m and mass M, 0.60 kg. The angle of the inclined plane is 0 37 and the coefficients of static and kinetic frictions are g 0.35 and A 0.30 respectively The frictional force at the axle of the pulley...
Problem#7 Two boxes are connected by a weightless cord running over a very light frictionless pulley as shown in the figure. Box A, of mass 8.0 kg, is initially at rest on the top of the table. The coefficient of kinetie friction between box A and the table is 0.10. Box B has a mass of 15.0kg. and the system begins to move just after it is released. (a Draw the free-body diagrams for each of the boxes, identifyi each...
2. A small box of mass m is kept on a fixed, smooth sphere of radius R at a position where the radius through the box makes an angle of 30° with the vertical. The box is released from the position. (a) What is the force exerted by the sphere on the box just after the release? (b) Find the distance travelled by the box before it leaves contact with the sphere. 3. A particle is suspended from a fixed...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
Most questions answered within 3 hours.
-
Identify 3 research scenarios that might provide a low,
medium, and high degree of variability in...
asked 8 minutes ago -
how
does gravity affect the trajectory of projectile? what would be the
shape of the trajactory...
asked 58 minutes ago -
Two small plastic spheres are given positive electrical charges.
When they are a distance of 15.4...
asked 1 hour ago -
An acidic solution containing gold ions is
electrolyzed, producing gaseous oxygen (from water) at the anode...
asked 1 hour ago -
Assume that the population of Mexico is 128
million and that the population increases 1.01
percentannually....
asked 2 hours ago -
Can someone please help me add appropriate descriptive
comments to each line of code in the...
asked 2 hours ago -
Romeo wishes to throw a bouquet of flowers to Juliet, who is on
a second-story balcony,...
asked 3 hours ago -
Why is QE a controversial monetary policy tool.
A. It may lead to excessive inflation.B. By...
asked 3 hours ago -
Principles of Programming midterm study guide help!
1.)
______ Which of the following would reference the...
asked 3 hours ago -
A finite potential well has depth U0 = 2.78 eV . What is the
penetration distance...
asked 4 hours ago -
1. The bus bars of a power station are in two sections A and B
separated...
asked 4 hours ago -
Fiscal policy is the deliberate manipulation of taxes and
government spending to alter GDP, employment, inflation...
asked 5 hours ago