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संबंधित प्रश्न
Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.
The energy of a body is its capacity to do .........
A machine raises a load of 750 N through a height of 16 m in 5 s. calculate:
- energy spent by machine,
- power at which the machine works.
Name the forms of energy which a wound-up watch spring possesses.
Explain by an example that a body may possess energy even when it is not in motion.
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
Define Translational motion.
State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.
