Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
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
संबंधित प्रश्न
In which of the following cases is work being done:
- A boy pushing a heavy rock
- A boy climbing up the stairs
- A coolie standing with a box on his head
- A girl moving on the road.
The moon is revolving around the earth in a circular path. How much work is done by the moon?
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
Find the kinetic energy of a body of mass 1 kg moving with a uniform velocity of 10 m s-1.
Explain the difference between a uniform linear motion and a uniform circular motion.
Distinguish between work and power.
How fast should a boy weighting 30 kg run so that his kinetic energy is 375 joule?
What is the difference between renewable and non-renewable resources?
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
