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A cricket ball of mass 0.15 kg is thrown...

A cricket ball of mass 0.15 kg is thrown vertically up by a bowling machine so that it rises to a maximum height of 20 m after leaving the machine. If the part pushing the ball applies a constat force F on the ball and moves horizontally a distance of 0.2 m while launching the ball, the value of F (in N) is `(g = 10 ms^(-2))` __________.

Text Solution

Verified by Experts

The correct Answer is:
150
`W_(F)= (1)/(2) mv^(2)= mgh`
`F(S)= mgh`
F(0.2)= (0.15) (10) (20)
F= 150N
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