Question

(i) Why is the handle of a door provided at the free end of the door? (ii) How are S.I and C.G.S units of moment of forcr related.?​

Answer 1

Answer:

1. The purpose of a door handle is to provide a point of force to pull open an un-latched door by hand. In the case of a latched door, using the door handle to operate the latch and door with one hand without repositioning the hand is more efficient than other alternatives.

2. S.I unit of force is Newton (N). One Newton is that force which when acting on a body of mass 1 kg, produces an acceleration of 1 m s-2 in it. C.G.S unit of force is dyne. One dyne is that force which when acting on a body of mass 1 gram, produces an acceleration of 1 cm s-2 in it.

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