Q.

A ball thrown by one player reaches the other in 2 s. The maximum height attained by the ball above the point of projection will be about

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a

2.5 m

b

5 m

c

7.5 m

d

10 m

answer is B.

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Detailed Solution

t=2usinθg   or   2=2usinθg   or   usinθ=g hm=u2sin2θ2 g=g22 g=g2=5 m
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