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If a force acts perpendicular to the direction of motion of a body, what is the amount of work done?

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in Engineering Physics I by (558k points)
If a force acts perpendicular to the direction of motion of a body, what is the amount of work done?

(a) Infinity

(b) Constant

(c) Zero

(d) Sinθ

The question was asked in a national level competition.

This intriguing question originated from Work and Energy topic in portion Nature of Physical World of Engineering Physics I

1 Answer

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Best answer
The correct choice is (c) Zero

The explanation is: If a force acts perpendicular to the direction of a body, the amount of work done is zero because there is no displacement in the direction of a force.

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