Question

(16) When a ball A is thrown in vertically upward direction with velocity V. exactly at the sam
another hall B is allowed to fall freely, from height h. The velocity of A with respect to B at time is...
(a) vo
(b) vo-2gt
(c)vo-gt
(d)root vo^2-2gh​

Answer 1

Let ball A be thrown up with velocity vo.

velocity in upward direction at any time t is:

$v_A=vo-gt$

velocity in down direction of Ball B at any time t is:

$v_B=gt$

Now

$v_A-v_B=vo-gt-gt=vo-2gt$

Hence option B.

Answer 2

Answer:

(B) V0-2gt

Explanation: