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प्रश्न
Explain the difference between a uniform linear motion and a uniform circular motion.
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उत्तर
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संबंधित प्रश्न
Define 1 joule of energy.
It takes 20 s for a person A of mass 50 kg to climb up the stairs, while another person B does the same in 15 s. Compare the work done.
Explain degradation of energy by taking two examples of your daily life.
Define 1 joule of work.
A force of 50 N acts on a body and moves it a distance of 4 m on horizontal surface. Calculate the work done if the direction of force is at an angle of 60° to the horizontal surface.
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?
What is the work done when the object acted upon by a force remains at rest?
A machine raises a load of 750 N through a height of 16 m in 5s. calculate:
(i) work done by machine,
(ii) power at which the machine works.
