The S.I. unit of moment of force is ______.

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The S.I. unit of moment of force is newton-metre.

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Chapter 1: Force - EXERCISE - 1 (A) [Page 10]

Chapter 1 Force
EXERCISE - 1 (A) | Q 27. (i) | Page 10

A nut is opened by a wrench of length 20 cm. If the least force required is 2N, find the moment of force needed to loosen the nut.

What are non-contact forces? Give two example

State one way to reduce the moment of given force about a given axis of rotation.

A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.

Classify the following amongst contact and non-contact forces.
Frictional force

Classify the following amongst contact and non-contact forces.
gravitation force

Classify the following amongst contact and non-contact forces.
electrostatic force

State two factors affecting the turning effect of a force.

State two factors on which moment of the force about a point depends.

Calculate the length of arm of couple, if a force of 13 N produces a moment of couple of 14.3 Nm.