F m m Two identical blocks of mass m are connected with a massless spring and placed on a horizontal and frictionless table. The two blocks-spring system is initially at rest. At the instant t = t, a horizontal and constant force of magnitude F is applied to the left block. At a later time t = t che force is removed. (Part a) What is ãom, the acceleration of the center of mass of the 2 blocks + spring system after the force is removed (for t > t2)? Express your answers in some or all of the following: m, F, Deltat fo = ty – t1, and hati for i. (Part b) What is õem, the velocity of the center of mass of the 2 blocks + spring system after the force is removed (for t > t2)? Express your answers in some or all of the following: m, F, Deltat for At = tz – t1, and hati for i. em (Part c) What is the speed of the blocks at the instant when the spring is at maximum compression ? Both blocks are momentarily at rest therefore their speeds are both zero. The same as the speed of the center of mass of the system. Half the speed of the center of mass because they have equal masses. Not enough information.
F m m Two identical blocks of mass m are connected with a massless spring and placed on a horizontal and frictionless table. The two blocks-spring system is initially at rest. At the instant t = t, a horizontal and constant force of magnitude F is applied to the left block. At a later time t = t che force is removed. (Part a) What is ãom, the acceleration of the center of mass of the 2 blocks + spring system after the force is removed (for t > t2)? Express your answers in some or all of the following: m, F, Deltat fo = ty – t1, and hati for i. (Part b) What is õem, the velocity of the center of mass of the 2 blocks + spring system after the force is removed (for t > t2)? Express your answers in some or all of the following: m, F, Deltat for At = tz – t1, and hati for i. em (Part c) What is the speed of the blocks at the instant when the spring is at maximum compression ? Both blocks are momentarily at rest therefore their speeds are both zero. The same as the speed of the center of mass of the system. Half the speed of the center of mass because they have equal masses. Not enough information.
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mm m
Two identical blocks of mass m are connected with a massless spring and placed on a horizontal and frictionless table. The two blocks-spring
system is initially at rest. At the instant t = t, a horizontal and constant force of magnitude F is applied to the left block. At a later time t = t2
the force is removed.
(Part a) What is āem, the acceleration of the center of mass of the 2 blocks + spring system after the force is removed (for t > tą)? Express your
answers in some or all of the following: m, F, Deltat for At = t2 – t1, and hati for i.
dem
(Part b) What is vem, the velocity of the center of mass of the 2 blocks + spring system after the force is removed (for t > t2)? Express your
answers in some or all of the following: m, F, Deltat for At = tz – tı, and hati for i.
Vem
(Part c) What is the speed of the blocks at the instant when the spring is at maximum compression ?
O Both blocks are momentarily at rest therefore their speeds are both zero.
O The same as the speed of the center of mass of the system.
O Half the speed of the center of mass because they have equal masses.
O Not enough information.
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