Question

Chapter - THE FORCE AND LAWS OF MOTION
PAGE NO. -118
IN TEXT​

Answer 1

Explanation:

First law of motion: An object remains in a state of rest or of uniform motion in a straight line unless acted upon by an external unbalanced force.•   Inertia    

The mass of an object is a measure of its inertia.      

Its S.I. unit is kg.    

Second law of motion: The rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force. Mathematically.      

Momentum: The momentum of an object is the product of its mass and velocity and has the same direction as that of the velocity. Its S.I. unit is kg m/s.  

Third law of motion: To every action, there is an equal and opposite reaction and they act on two different bodies.

Answer 2

Answer:

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of qno 2

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