Question

9. Suppose a moving car suddenly stops due to any reason. Four persons push the car Through a distance of 2 m , car doesn't start but when it is pushed through a distance of
15 - 20 m, It starts. Explain.​

Answer 1

Answer:

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Answer 2

It is due to inertia of rest which has been explained in Newton's First Law of Motion.

Explanation:

According to Newton's First Law of Motion, a body continues to be in a state of rest or in a state of uniform motion until an external force is applied on it.

• In this example, we see that when the car is at rest, it is in inertia of rest, and will not come to motion until an external force is applied to it.
• When the car is pushed through a distance of 2m, you are actually trying to bring the car in inertia of motion.
• But due to the small distance and small force, the car is unable to change it's state and continues to remain at rest.
• Now by pushing the car through a distance of 15-20m, enough force is applied to change the state of car from rest to motion. Hence, the car starts moving.