Work Calculation Using a 10 HP Motor

What is the work the motor performs?

A 10 hp motor is used to raise a 1000 Newton weight at a vertical distance of 5 meters. What is the work the motor performs?

Work Calculation:

The work done by a 10 HP motor when it raises a 1000 Newton weight at a vertical distance of 5 meters is 5kJ.

Work Definition: Work is the energy that is moved to or from an item by applying force along a displacement in physics. For a constant force acting in the same direction as the motion, work is easiest expressed as the product of force magnitude and distance traveled.

Rate of Doing Work: Since the force transfers one unit of energy for every unit of work it performs, the rate at which work is done and energy is used are equal.

Solution Explained:
Given, Weight = 1000N and distance = 5m
Work = (weight) × (distance moved)
= 1000 x 5
= 5000 Nm or 5000 J = 5 kJ
Therefore, the work done in lifting a 1000 Newton weight at a vertical distance of 5 meters is 5 kJ.