When applying the principles of work and force:
A) No work is accomplished when an object is stopped by mechanical force
B) If a 50-pound object is moved 5 feet, 250 ft-lb of work is produced
C) Work is produced when a force moves a certain mass a specific distance
D) All of the above

Question

Quizplus · Accepted Answer

All the statements are correct regarding the principles of work and force. A) Work is defined as force applied over a distance, so if an object is stopped, no distance is covered, and technically no work is done. B) Work is calculated as force times distance, so moving a 50-pound object over 5 feet equals 250 ft-lb of work. C) This is the basic definition of work in physics.

When Applying the Principles of Work and Force