Physics, asked by imumallick, 1 year ago

If action is always equal and opposite to the reaction then how an object moves?

Answers

Answered by amitkolasani
4

Newton’s third law of motion states that when one object exerts a force on another object, the second object instantaneously exerts a force back on the first. These two forces are always equal in magnitude but opposite in direction. These forces act on different objects and never on the same object.

Action and reaction both are not acted on the same body. So there is no chance of cancellation.

hope this helps thnak u


amitkolasani: reaction force is not a resistive force
amitkolasani: say for example u are pushing a heavy block the more force u apply the more strain u feel on ur hands this is because of the reaction forcewhich the block is applying on uwhich is equal to the force u are exerting on the block
amitkolasani: the action force is acting on the block while the reaction force is acting on u
imumallick: sir resistive force is the force whose direction is opposite to the velocity of the body and the direction of the velocity of any body is determined by the direction of action force applied on it...then, how can we say that reaction force is not a resistive force
imumallick: As reaction force fulfill all the criteria of being a resistive force
amitkolasani: no no try to understand
amitkolasani: take friction for example which is resistive force
amitkolasani: when we push a block forward on a rough horizontal plane, there will be 2 forces acting on the body (apart from the gravitational force and normal which cancel each other) the 2 forces are the force we apply (action) and friction which is opposite in direction to the force we applied so friction is a resistive force
amitkolasani: but in the above case we donot find rection force anywhere acting on the block this is because rection force dosent act on the block it actson the source which is providing force
amitkolasani: a resistive force acts on the same block oppsite to the force acting but a reaction force dosent act on the block so it dosent affect hte motion of a block resistive force affect the motion of the block
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