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Question:

If a man uses 200 N of force over a distance of 50 meters, how many joules of work are performed?

A 10,000
Explaination

Work is defined as the product of force in the direction of displacement. Here a force of 200 N is used over a displacement of 50 m. Consequently, the work performed is 200 N * 50 m = 10,000 J.