Q.

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

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a

ball reaches the ground first

b

ball 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

answer is C.

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Detailed Solution

Vertical component of velocities of both the balls are same and equal to zero. So,

t=2hg

Same for both the balls.

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