A person picks up 20kg of goods at 2m above the ground and keeps it on his head, work done by the person is?
A. 200J
B. 400J
C. 40J
D. 20J
Answer: Option B
This Question Belongs to Physics GK Chapter Wise >> Work, Energy And Power
Related Questions on Work, Energy and Power
Which of the following can do more work?
A. A raised hammer
B. A bullet fired by the gun
C. A moving stone
D. A rotating wheel
A. Energy released by a moving object
B. Energy emitted during mechanical work
C. The sum of the kinetic energy and potential energy of an object
D. Equal to the rate of work done
A. Chemical energy
B. Potential energy
C. Kinetic energy
D. Heat energy
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