Question

Newton's 3rd law is applicable a) for a body is at rest, b) for a body in motion, c) both a and b, d) only for bodies with equal masses ​

Answer 1

It is option c .If a body at rest is hit by another object is experiences kick in opposite direction. Hence both the objects are effected with equal magnitude and in opposite direction

Answer 2

The correct option is (c) "both a and b".

Explanation:

• Newton's third law of motion states that for an action there is an equal and opposite reaction. Both action and reaction act on two different objects.
• When two objects collides, object 1 applies a force on object 2, such that the magnitude of force from object 1 to 2 is equal to the force from object 2 to object 1 and the forces are acting in opposite direction.
• The third law of Newton is applicable for both a body at rest and for a body in motion.
• Hence, the correct option is (c) "both a and b".

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Newton's 3rd law

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