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3 years ago

Is work done if you pull a child in a wagon?

Physics

2 answers:

antiseptic1488 [7]3 years ago

5 0

The answer is A. yes, the force applied is parallel to the direction of motion

klemol [59]3 years ago

4 0

Answer:

Option A

Explanation:

The work done on a body is the dot product of the force applied (F) and displacement (s) of the body.

W = F·s

⇒W= F s cosФ

where, Ф is the angle between the applied force and direction of motion.

When a child is pulled in a wagon, the force applied is parallel to the direction of the displacement. Thus, Ф =0°

W = F·s

⇒W= F s cos 0°

Hence, a non zero work is done when a child is pulled in a wagon.

Option A is correct.

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