Question

PLEASE ANSWER W IMAGE!!
A body ‘A’of mass 2kg is projected upward from the surface of the ground at t=0 with a velocity of
20m/s. One second later a body B, also of mass 2kg, is dropped from a height of 20m. If they collide
elastically, then velocities just after collision are
(A) VA = 5 m/s downward, VB = 5 m/s upward
(B) VA = 10 m/s downward, vp= 5 m/s upward
(C) va = 10 m/s upward, Vp = 10 m/s downward
(D) both move downward with velocity 5 m/s.​

Answer 1

Answer:

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