Question

Calculate the work done by a force of 30 N in lifting a load of 2 kg to a height of 10 m (g = 10 m/s2)

Answer 1

Answer:

300 J

Explanation:

Given :

1. Applied force = 30 N
2. Mass = 2 kg
3. Height = 10 m
4. g = 10 m/s²

Work done by the force :

• Work done = Force x Displacement
• Work done = mg x h
• Work done = 30 N x 10 m
• Work done = 300 J

Note :

• What you have calculated is the work done by gravitational force on the object (that too, incorrectly)
• But in the end, it asks for work done by the force of 30N
• Hence, the given answer ~