search
arrow-left Previous
Next arrow-right
Q: An object of 20 kg is raised through a height of 2m, what will be the work done by the force of gravity on the object?
  • A. 400J
  • B. 50J
  • C. 40J
  • D. 100J
Correct Answer: Option A - Work done, W = mgh Here, m is 20 kg, h is 2m and g=10 m/sec² W = 20x10x2=400 J
A. Work done, W = mgh Here, m is 20 kg, h is 2m and g=10 m/sec² W = 20x10x2=400 J

Explanations:

Work done, W = mgh Here, m is 20 kg, h is 2m and g=10 m/sec² W = 20x10x2=400 J