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A body of mass 5 kg is initially at rest...

A body of mass 5 kg is initially at rest. By applying a force of 20 N at an angle of `60^(@)` with horizontal the body is moved to a distance of 4 m. The kinetic energy acquired by the body is

A

80J

B

60J

C

40J

D

17.2J

Text Solution

Verified by Experts

The correct Answer is:
C
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FULL MARKS-WORK, ENERGY AND POWER-Additional Question Solved (I. MCQ)
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  12. Inelastic collision is due to

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  13. If the velocity of separation is equal to the velocity of approach , t...

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  14. For elastic collision, coefficient of restitution is

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  15. For inelastic collision coefficient of restiitution is

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  16. For perfectly inelastic collision, coefficient of restitution is

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  17. For perfectly inelastic collision, coefficient of restitution is

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