Advertisements
Advertisements
Question
State two factors on which the work done on a body depends.
Advertisements
Solution
Two factors are :
(i) Magnitude of force applied (F).
(ii) Distance moved by the body in the direction of force (d) or (5)
APPEARS IN
RELATED QUESTIONS
A coolie does no work against the force of gravity while carrying a luggage on a road.
A vessel containing 50 kg of water is placed at a height 15 m above the ground. Assuming the gravitational potential energy at ground to be zero, what will be the gravitational potential energy of water in the vessel? (g = 10 m s-2)
What is the condition for a force to do work on a body?
What is the work done against gravity when a body is moved horizontally along a frictionless surface?
A max X goes to the top of a building by a vertical spiral staircase. Another man Y of the same mass goes to the top of the same building by a slanting ladder. Which of the two does more work against gravity and why?
A cricket ball is thrown up from the earth's surface. What happens to its P.E.
(a) during the motion
(b) at the highest point?
A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?
In what way does an ‘Ideal machine’ differ from a ‘Practical machine’?
