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Question

Newton's third law of motion states that _____.

This question was previously asked in
SSC CHSL 2025 Tier 1 Question Paper (21-Nov-2025) (Shift 1)
The correct answer is

For every action, there is an equal and opposite reaction

Newton's three laws of motion describe how forces affect the motion of bodies.

The third law says forces always occur in pairs: when one body exerts a force on another, the second exerts a force of equal magnitude in the opposite direction, for example the recoil of a gun or a rocket pushing exhaust gases backward.

The statement about rate of change of momentum is the second law, the statement about an object remaining in motion is the first law (inertia), and a reaction greater than the action contradicts the third law.

Hence, For every action, there is an equal and opposite reaction.

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Similar Questions

  1. What is inertia?

  2. The statement given below signifies which of the law/principle given in the options.

    “An object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applied force.”


Important Questions from Laws of Motion

  1. Which of the following is correct?

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

    II. In an isolated system the total momentum remains conserved

  2. A 20.0 kg block is placed on a smooth horizontal table. A horizontal force of 12.0 Newton is applied to the block. The position of the block at 5.0 sec is

  3. A subway train starts from rest at a station and accelerates at a rate of 3 ms-2 for 10s. It then runs at a constant speed for 20s and decelerates at 5 ms-2 unit it stops at the next station. The distance between the two stations is:

  4. In a desert, a beetle's motion sends fast longitudinal pulses, vL = 150 ms-1, and slower transverse pulses, vS = 50 ms-1, along the sand's surface. The sand scorpion has eight legs; spread roughly in a circle of 5 cm diameter, intercepts the faster longitudinal pulses 4.0 ms earlier than the slower transverse pulse. The pray is located at a distance of:

  5. Why do passengers in a moving car tend to jerk forward when the brakes are suddenly applied?
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