A body projected vertically up with a velocity of 10 m s−1 reaches a height of 20 m. If it is projected with a velocity of 20 m s−1 then the maximum height reached by the body will be :
A
20 m
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B
10 m
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C
80 m
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D
40 m
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Solution
The correct option is C 80 m Given , v=0,u=10m/s,h=20m ,