A massless seesaw of length 2.9 m is horizontally at rest. Two person of mass 49...
A massless seesaw of length 2.9 m is horizontally at rest. Two person of mass 49 kg and 74 kg sit simultaneously, and begin to move with negligible initial speed. Calculate the initial angular acceleration. Use g = 10 m/s2.
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A massless seesaw of length 2.9 m is horizontally at rest. Two
person of mass 49...
A seesaw consisting of a uniform board of mass and length supports at rest a father...
A seesaw consisting of a uniform board of mass and length supports at rest a father and daughter with masses my and respectively, as shown in the figure. The support (called the futrum) is under the center of gravity of the board, the father is a distance from the center, and the daughter is a distance from the center A balanced system ME (a) Determine the magnitude of the upward forcen exerted by the support on the board SOLUTION Conceptualize...
II. Two children are sitting on a massless 4.0 m long seesaw which has a pivot...
II. Two children are sitting on a massless 4.0 m long seesaw which has a pivot at the middle point. If one child, with a mass of 36 kg sits 1.2 m from the pivot, where must the other child, of mass 54 kg, sit so that the seesaw remains in equilibrium? a. 0.6 m b. 0.8 m c. 1.2 m d. 1.4 m e. None of the above
Solve using torque 3. Seesaw A seesaw of length L and mass M is pivotad at...
Solve using torque
3. Seesaw A seesaw of length L and mass M is pivotad at a heigkt M2 h, as shown Children of and sitting tha masses m m2 are On m4 LI2 ends. Initially, m is touching the ground Assuming mm, with what linaar speed will m2 hit the ground af ter the seesaw is a) released from rest? b) Compute h=0sm, L-3 m and m2 25 kg. from part (a) if M 15 kg m= 20 kg,
A person holds a ladder horizontally at its center. Part A Treating the ladder as a...
A person holds a ladder horizontally at its center. Part A Treating the ladder as a uniform rod of length 3.46 m and mass 10.2 kg, find the torque the person must exert on the ladder to give it an angular acceleration of 0.383 rad/s2. 0 ACP O O ? Nm
A mass m has a massless hook of length 2L attached to it. The end of...
A mass m has a massless hook of length 2L attached to it. The
end of this hook is a massless sticky scoop. This system of mass
and hook is initially at rest. Another mass m flies with speed v1
directly into this scoop, sticks, and the whole thing starts to
move and rotate. Find expressions for the linear and rotational
velocity of the combined object after the first mass is caught.
A seesaw has an irregularly distributed mass of 40 kg k g , a length of...
A seesaw has an irregularly distributed mass of 40 kg k g , a length of 3.0 m m , and a fulcrum beneath its midpoint. It is balanced when a 60-kg k g person sits on one end and a 80-kg k g person sits on the other end. 1. Express your answer with the appropriate units. Enter negative value if the center of mass is located closer to the 60-kgkg person and positive value if the center of...
17. A very light (massless) rod of length Lhas a mass m at one end and...
17. A very light (massless) rod of length Lhas a mass m at one end and a fixed frictionless axle at the other end, so it can rotate in the vertical plane. The rod is released from rest at an angle 8 from the vertical as shown. What is the magnitude of the initial angular acceleration a, due to gravity, just after the rod is released? A B. c. 9 0 mgL sin
A massless rigid rod whose length L = 21.0 cm has a ball of mass m...
A massless rigid rod whose length L = 21.0 cm has a ball of mass
m = 0.079 kg attached to one end (see Figure). The other end is
pivoted in such a way that the ball will move in a vertical circle.
The system is launched from the horizontal position A with an
initial downward speed v0. The ball just reaches point D
and then stops. Calculate v0.
What is the tension in the rod at B?
· Rod...
The uniform thin rod in the figure below has mass M = 4.00 kg and length...
The uniform thin rod in the figure below has mass M =
4.00 kg and length L = 2.21 m and is free to rotate on a
frictionless pin. At the instant the rod is released from rest in
the horizontal position, find the magnitude of the rod's angular
acceleration, the tangential acceleration of the rod's center of
mass, and the tangential acceleration of the rod's free end.
(a)
the rod's angular acceleration (in rad/s2)
rad/s2
(b)
the tangential acceleration...
A homogenous board of 5.0 m in length and 260 N in weight is lied horizontally...
A homogenous board of 5.0 m in length and 260 N in weight is
lied horizontally on two supports. The left support is located at
the left end of the board and the right support is located at 1 m
from the right end of the board. A person with a mass of 50 kg
stand on the board at a distance of 0.9 m from the right end of the
board. a) Draw the free body diagram of the...
A seesaw consisting of a uniform board of mass and length supports at rest a father and daughter with masses my and respectively, as shown in the figure. The support (called the futrum) is under the center of gravity of the board, the father is a distance from the center, and the daughter is a distance from the center A balanced system ME (a) Determine the magnitude of the upward forcen exerted by the support on the board SOLUTION Conceptualize...
II. Two children are sitting on a massless 4.0 m long seesaw which has a pivot at the middle point. If one child, with a mass of 36 kg sits 1.2 m from the pivot, where must the other child, of mass 54 kg, sit so that the seesaw remains in equilibrium? a. 0.6 m b. 0.8 m c. 1.2 m d. 1.4 m e. None of the above
Solve using torque
3. Seesaw A seesaw of length L and mass M is pivotad at a heigkt M2 h, as shown Children of and sitting tha masses m m2 are On m4 LI2 ends. Initially, m is touching the ground Assuming mm, with what linaar speed will m2 hit the ground af ter the seesaw is a) released from rest? b) Compute h=0sm, L-3 m and m2 25 kg. from part (a) if M 15 kg m= 20 kg,
A person holds a ladder horizontally at its center. Part A Treating the ladder as a uniform rod of length 3.46 m and mass 10.2 kg, find the torque the person must exert on the ladder to give it an angular acceleration of 0.383 rad/s2. 0 ACP O O ? Nm
A mass m has a massless hook of length 2L attached to it. The
end of this hook is a massless sticky scoop. This system of mass
and hook is initially at rest. Another mass m flies with speed v1
directly into this scoop, sticks, and the whole thing starts to
move and rotate. Find expressions for the linear and rotational
velocity of the combined object after the first mass is caught.
17. A very light (massless) rod of length Lhas a mass m at one end and a fixed frictionless axle at the other end, so it can rotate in the vertical plane. The rod is released from rest at an angle 8 from the vertical as shown. What is the magnitude of the initial angular acceleration a, due to gravity, just after the rod is released? A B. c. 9 0 mgL sin
A massless rigid rod whose length L = 21.0 cm has a ball of mass
m = 0.079 kg attached to one end (see Figure). The other end is
pivoted in such a way that the ball will move in a vertical circle.
The system is launched from the horizontal position A with an
initial downward speed v0. The ball just reaches point D
and then stops. Calculate v0.
What is the tension in the rod at B?
· Rod...
The uniform thin rod in the figure below has mass M =
4.00 kg and length L = 2.21 m and is free to rotate on a
frictionless pin. At the instant the rod is released from rest in
the horizontal position, find the magnitude of the rod's angular
acceleration, the tangential acceleration of the rod's center of
mass, and the tangential acceleration of the rod's free end.
(a)
the rod's angular acceleration (in rad/s2)
rad/s2
(b)
the tangential acceleration...
A homogenous board of 5.0 m in length and 260 N in weight is
lied horizontally on two supports. The left support is located at
the left end of the board and the right support is located at 1 m
from the right end of the board. A person with a mass of 50 kg
stand on the board at a distance of 0.9 m from the right end of the
board. a) Draw the free body diagram of the...
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