Question

The work done on a body of mass 5 Kg is 70 J. What is the magnitude of the force applied if the total displacement it covered is 7 m.

• A. 10 N
• B. -10 N
• C. 20 N
• D. 70 N

Answer 1

Answer:

A. 10 N

The amount of work done on a body is obtained by calculating the dot product of the force and the displacement.