I need ans to be correct and fast Fmm mTwo identical blocks of mass m are connected with a massless spring and placed on a horizontal and frictionless table. The two blocks-springsystem 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 = t2the 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 youranswers 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 youranswers 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.

Mass = m Force = F i^ ∆t = t2 - t1

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 = tị 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 ām, 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 for At = tą – 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 (fort > ta)? Express your answers in some or all of the following: m, F, Deltat for At = tz – t1, and hati for i. (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. • 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. 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 = tị 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 ām, 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 for At = tą – 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 (fort > ta)? Express your answers in some or all of the following: m, F, Deltat for At = tz – t1, and hati for i. (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. • 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. Not enough information.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 49PQ: A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a...

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