Advertisements
Advertisements
Question
Advertisements
Solution
Given, loadm = 500kg; height h = 5m; g = 10ms²
W = mgh = 500 x 10 x 5 = 25000 J = 25kJ
APPEARS IN
RELATED QUESTIONS
Define 1 J of work.
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.

A force of 30 N acts on a body and moves it through a distance of 5 m in the direction of force. Calculate the work done by the force.
.A man raises a box of mass 50kg to a height of 2m in 20s, while another man raises the same box to the same height in 50s. Compare:
(i) the work done, and
(ii) the power developed by them.
Name the force acting away from the centre of circular path.
What is the work done when the object acted upon by a force remains at rest?
Complete the following sentences:
1 H.P. = ........ W.
