Advertisements
Advertisements
Question
Advertisements
Solution
This is because at each point of the circular path, the displacement is perpendicular to the force, which is directed towards the centre, along the radius.
APPEARS IN
RELATED QUESTIONS
A coolie does no work against the force of gravity while carrying a luggage on a road.
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.
A man lifts a mass of 20 kg to a height of 2.5 m. Assuming that the force of gravity on 1 kg mass is 10 N, find the work done by the man.
Name the forms of energy which a wound-up watch spring possesses.
What happens to the work done when the dispacement of body is at right angles to the direction of force acting on it? Explain your answer.
Explain the difference between a uniform linear motion and a uniform circular motion.
How many joules are there in 1 mega joule?
A is a push or a pull ______.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Food grains are getting dried in the sun.
