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प्रश्न
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उत्तर
The parameters that can change the kinetic energy are:
(i) Mass
(ii) Speed
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संबंधित प्रश्न
Derive a relationship between S.I. and C.C.S. unit of work
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.
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.
MULTIPLE CHOICE TYPE
In an electric cell which in use, the change in energy is from:
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Write an expression for the work done against gravity.
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