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A steel ball of mass 5 kg is thrown down...

A steel ball of mass 5 kg is thrown downward with velocity of `10 m//s` from height 19.5 m. It penetrates sand by 50 cm. the change in mechanical energy will be : (`g=10 m//s`)

A

1 J

B

1.25 J

C

1.5 J

D

1.75 J

Text Solution

Verified by Experts

The correct Answer is:
B
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