Question

8.A load is lifted 4000 mm by a crane. If the force required to lift the mass is 100 N, the work done is:

Answer 1

The work done by a crane that lifts a load 4000 mm with a force of 100 N is calculated using the formula Work = Force × Distance, which gives a result of 400 J (joules).

Step-by-step explanation:

• The question asks about calculating the work done by a crane while lifting a load. Work done is a concept from physics that is defined as the force applied to an object times the distance over which the force is applied, as long as the force is in the direction of the displacement. Since the force required to lift the mass is 100 N and the load is lifted 4000 mm (which is 4 meters when converted to the SI unit of meters), the work done can be calculated using the formula Worki = Force × Distance. In this case, the work done W is 100 N × 4 m = 400 J (joules).

Answer 2

400 J

Step-by-step explanation:

work done = force x distance

First convert 4000 m into metres = 4m

Then do 100N x 4m = 400