A ball P is dropped vertically and another ball Q is thrown horizontally with same velocities from s

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2.Motion in Straight Line

easy

A ball $P$ is dropped vertically and another ball Q is thrown horizontally with the same velocities from the same height and at the same time. If air resistance is neglected, then

A

Ball P reaches the ground first

B

Ball Q reaches the ground first

C

Both reach the ground at the same time

D

The respective masses of the two balls will decide the time

Solution

(c)Vertical component of velocities of both the balls are same and equal to zero. So $t = \sqrt {\frac{{2h}}{g}} $

Standard 11

Physics

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