Newton's Laws of Motion

IMPORTANT

Newton's Laws of Motion: Overview

This Topic covers sub-topics such as Force, Impulse, Second Law of Motion, First Law of Motion, Third Law of Motion, Resultant Force, Unbalanced Forces, Mathematical Formulation of Second Law of Motion, Gravitational Unit of Force and, Equilibrant

Important Questions on Newton's Laws of Motion

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What is the gravitational unit of force?

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Magnitude of resultant force of two unlike parallel force can be obtained through the difference between the two forces.

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Draw two unlike parallel forces of magnitude 4 N and 8 N on a block.

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Draw two like parallel forces of magnitude 4 N and 8 N on a block.

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Define unlike parallel forces.

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Define like parallel forces.

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How do we find the magnitude of resultant force?

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Magnitude of resultant of unbalanced force is zero.

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Magnitude of resultant of balanced force is zero.

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What is resultant force?

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A system can be brought to equilibrium by applying another force equal to the resultant force in magnitude, but opposite in direction is called as Equilibrant.

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Define equilibrant force.

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Assertion: We should always wear a seat belt while travelling in a car.

Reason: Seat belt prevents us from falling forward due to inertia when sudden brakes are applied.

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A large force is acting on a body for a short time. The impulse imparted is equal to the change in _____.

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During an arm wrestling match, participants put their arms on the table and wrestle with their palms. If the force exerted by the players are equal, where is the balanced force acting?

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Calculate the force required to impart a velocity of 30m/s in 12sec, if the mass of the car is 1500 kg _____.

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If a force of 5 N is acting on a body of mass 10 kg, then the acceleration produced is _____ m/s2.

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A body of mass 2 kg is acted upon by a force of 1Newton. Its acceleration is _____.

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According to the third law of motion, action and reaction

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According to the third law of motion, action and reaction _____.