Question

Which of the following is an example of work being done?

A.
Carrying a 98 kg box across a room.

B.
Pushing a car with 250 N of force, but the car does not move.

C.
Holding a 48-pound barbell above your head for 30 seconds.

D.
Carrying a 98 kg box up the stairs.

Answer 1

Answer:

A.

Carrying a 98 kg box across a room.

D.

Carrying a 98 kg box up the stairs

Answer 2

Answer: Hello, there! your answer is Below

D.

Carrying a 98 kg box up the stairs.

Explanation:

Work is done whenever a force moves something. Everyday examples of work include walking up stairs, lifting heavy objects, pulling a sledge and pushing a shopping trolley. Whenever work is done, energy is transferred from one place to another.

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