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Force and Laws of Motion — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceForce and Laws of Motion1 Mark
MCQ
Which of the following situations involves the Newton's second law of motion?
  • ✓
    A force can stop a lighter vehicle as well as a heavier vehicle which are moving.
  • B
    A force can accelerate a lighter vehicle more easily than a heavier vehicle which are moving.
  • C
    A force exerted by a lighter vehicle on collision with a heavier vehicle results in both the vehicles cor to a standstill.
  • D
    A force exerted by the escaping air from a balloon in the downward direction makes the balloon to go upwards.
✓

Answer

Correct option: A.
A force can stop a lighter vehicle as well as a heavier vehicle which are moving.
Since, $\text{F} =\text{ma}$
$\Rightarrow\text{a} = \frac{\text{F}}{\text{m}}$
Lesser the mass, higher the acceleration.

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