MCQ
A body is projected vertically upward with speed $10 \,m / s$ and other at same time with same speed in downward direction from the top of a tower. The magnitude of acceleration of first body w.r.t. second is ...... $m / s ^2$ $\left\{\right.$ take $\left.g=10 \,m / s ^2\right\}$
  • $0$
  • B
    $10$
  • C
    $5$
  • D
    $20$

Answer

Correct option: A.
$0$
a
(a)

The acceleration of first body

$a_1=10 \,ms ^{-2}$

$a_2=10 \,ms ^{-2}$

$a_{ rel }=a_1-a_2=10 \,ms ^{-2}-10 \,ms ^{-2}=0$

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