A body of mass 2kg is thrown upward with initial velocity 20 m/s. After 2s its kinetic energy will be : (g = 10 m/s2)

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A body of mass 2kg is thrown upward with initial velocity 20 m/s. After 2s its kinetic energy will be : (g = 10 m/s²)

200 J

zero

400 J

100 J

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M = 2kg
   Velocity of body after 2S

       v = u – gt = 20 – 10 × 2 = 0, v = 0
∴ kinetic energy after 2 second
   = mv² = 0 ( $∵$ v = 0)

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