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A player kicks a football obliquely at a...

A player kicks a football obliquely at a speed of `20 m//s` so that its range is maximum. Another player at a distance of `24m` away in the direction of kick starts running at that instant to catch it, the speed with which the second player has to run is `(g=10 ms^(-2))`

A

`4 m//s`

B

`4sqrt2 m//s`

C

`8sqrt2 m//s`

D

`8 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`R_(max)=u^(2)/g` , distance `=R_(max)-x`
`T=(2usintheta)/g` , Distance `=VxxT`
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Knowledge Check

  • A player kicks a ball at a speed of 20ms^(-1) so that its horizontal range is maximum. Another players 24m away in the direction of kick starts running in the same direction at the same instant of hit. If he has to catch the ball just before it reaches the ground, he should run with a velocity equl to (take g=10ms^(-2))

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    D
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  • A man is at a distance of 6 m from a bus. The bus begins to move with a constant acceleration of 3 ms^(−2) . In order to catch the bus, the minimum speed with which the man should run towards the bus is

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