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प्रश्न
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उत्तर
The SI unit of centripetal force is newton (N).
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संबंधित प्रश्न
A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in 4 minutes and a girl weighing 30 kgf does the same in 3 minutes. Compare:
- The work done by them.
- The power developed by them.
A body is moved in a direction opposite to the direction of force acting on it. State whether the work is done by the force or work is done against the force
Name the quality which is measured in eV
Name the quality which is measured in Wh.
Name two places in india where electricity is generated from nuclear power plants.
State the principle of moments.
A mechanic can open a nut by applying a force of 200 N while using a lever handle of 50 cm length. How long handle is required if he wants to open it by applying a force of only 50 N?
It takes 20 s for a person A of mass 50 kg to climb up the stairs, while another person B of same mass does the same in 15 s. Compare the power developed by the persons A and B.
State the condition when the work done by the force is positive
State the practical unit mainly used in mechanical engineering and write down its equivalent in watt.
