Write answers of the following:
Q. Write answers of the following:
(i) Mention the direction in which the force of friction acts on a moving body State its units.
(ii) Name the property of bodies (or objects) to resist a change in their state of rest or of motion. Name the quantity that is a measure of this property.
(iii) Name the physical quantity whose unit is kg m s-1. Define this quantity.
Ans. (i) Direction opposite to that of motion. It unit is newton.
(ii) Inertia, mass.
(iii) Momentum: It is the quantity of motion contained in a body.
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