VISUAL PHYSICS ONLINE

2 KDYNAMICS

P20 019

The graph shows the time variation of momentum for object A of mass 3.00 kg moving in a straight line and subjected to a retarding force. Object A collides head-on with object B of mass 1.00 kg which is initially stationary.

a) What is the velocity of object A at time t = 3.00 s?

b) What is the magnitude and direction of the retarding force acting on object A before and after the collision?

c) What is the velocity of object B immediately after the collision?

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Solution