Question

(a) A body thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?



(b) You lift a heavily packed carton of mass m in vertically upward direction through a height h. What is the work done

i) by you on the carton,

ii) by force of gravity on the carton?





(c) Anil and Ashok are doing same amount of work. Anil is doing work at a rapid rate but works for only one hour. Ashok does work at a somewhat slower rate but continues to work for six hours. Who has greater power? Who has more energy?​

Answer 1

Answer:

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