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In a shotput event an athlete throws the...

In a shotput event an athlete throws the shotput of mass 10 kg with an initial speed fo `1 ms^-1` at `45^@` from a height 1.5 m above ground. Assuming air resistance to be negligible and acceleration due to gravity to be `10 ms^-2`, the kinetic energy of the shotput when it jst reaches the ground wil be

A

2.5 J

B

5.0 J

C

52.5 J

D

155.0 J

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MBD-WORK, ENERGY AND POWER-EXAMPLE
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