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Question

A ball is hit by a batsman at an angle of 37 as shown in figure. The man standing at P should run at what minimum velocity so that he catches the ball before it strikes the ground. Assume that height of man is negligible in comparison to maximum height of projectile.
1061113_49164bcd849e4b62a5aaf1f4f32ef76d.png

A
3ms1
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B
5ms1
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C
9ms1
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D
12ms1
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Solution

The correct option is B 5ms1

The time of the flight is given as

T=2usin(37)g

Hence the time of flight is 1.8s

v=91.8m/sec

Hence the speed of the man is5m/s


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