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प्रश्न
Define Translational motion.
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उत्तर
When a force acts on a rigid body which is free to move, the body starts moving in a straight line in the direction of the force. This is called translational motion.
संबंधित प्रश्न
Name a common device where a gear train is used
In which of the following cases, is work being done?
(i) A man pushing a wall.
(ii) a coolie standing with a load of 12 kgf on his head.
(iii) A boy climbing up a staircase.
A weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. Calculate:
- the work done, and
- the power developed by him. Take g = 10 N kg-1
What are the units of (a) work, and (b) energy?
No work is done by a man moving on a horizontal road while carrying a box on his head. Explain.
In the following case write yes, if the work is being done and no if no work is being done.
A boy climbing up a staircase.
A man squatting on the ground gets straight up and stand. The force of reaction of ground on the man during the process is ______.
Work done by this force at any instant is ______.
