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Question

Action and reaction forces are exerted on which bodies during an interaction?

This question was previously asked in
RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is

Two different bodies

Newton's third law of motion states that for every action, there is an equal and opposite reaction.

These action and reaction forces always act on two different bodies, never on the same body, which is why they do not cancel each other out.

This law applies universally to any interacting bodies, whether at rest or in motion.

Hence, action and reaction forces are exerted on two different bodies during an interaction.

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Important Questions from Laws of Motion

  1. Which one of the following is an example of Second Class Lever?

  2. A uniform meter scale of mass 0.24 kg is made of steel. It is kept on two wedges, W1 and W2 , in a horizontal position. W1 is at a distance of 0.2 m from one of its ends, while W2  is at distance of 0.4 m from the other end. If the force on the scale is N1 due to W1 and N2 due to W2, then : (take g =10·0 m s-2

  3. Consider a journey by a car represented by the graph given below in three parts A, B and C. The speed of the car in these parts is Va, Vb and Vc, respectively:

    Which one of the following is correct in this case?

  4. Rocket works on the principle of:

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