Advertisements
Advertisements
Question
State the principle of moments.
Solution
Principle of moments: If a body is in equilibrium under the action of number of force, then the sum of clockwise moments is equal to the sum of anticlockwise moments.
APPEARS IN
RELATED QUESTIONS
When does a force do work?
A coolie X Carrying a load on his head climbs up a slope and another coolie Y carrying the identical load on his head move the same distance on a frictionless horizontal platform. Who does more work? Explain the reason.
One horse power is equal to ______.
A boy weighing 350 N climbs up 30 steps, each 20 cm high in 1 minute, Calculate:
- the work done and
- power spent.
What do you mean by equilibrium of a body?
In which one of the following cases is the work done more? When the angle between the direction of motion and that of the force is (i) 90° (ii) 0°.
Define 1 kgf., How is it related to the S.I. unit of force?
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.