2.Motion in Straight Line
medium

From a building two balls $A$ and $B$ are thrown such that $A$ is thrown upwards and $B$ downwards with the same speed (both vertically). If $v_{A}$ and $v_{B}$ are their respective velocities on reaching the ground then,

A

$v_{B} > y_{A}$

B

$v_{A} > v_{B}$

C

$v_{A}=v_{B}$

D

their velocities depend on their masses

(AIEEE-2002)

Solution

(c) ${v^2} = {u^2} + 2gh \Rightarrow v = \sqrt {{u^2} + 2gh} $

so for both the cases velocity will be equal.

Standard 11
Physics

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