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संबंधित प्रश्न
Work is said to be done by a forte only when ................
Fill in the blank with suitable word :
Work is measured as a product of __________ and __________
A max X goes to the top of a building by a vertical spiral staircase. Another man Y of the same mass goes to the top of the same building by a slanting ladder. Which of the two does more work against gravity and why?
A boy does work when he pushes against a brick wall. (yes/no).
List any six forms of energy and write a short note on each of them.
Fill in the boxe to show the corresponding energy transformation.
Calculate the work done when:
A 5 kg weight is lifted 10 m vertically. (g = 9.8 m/s2)
Force acting on a particle moving in a straight line varies with the velocity of the particle v as F = `K/v`, where K is a constant. The work done by this force in time t is
