Explain -“For car moving with constant (uniform) velocity resultant force is zero”.

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4-1.Newton's Laws of Motion

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Explain -“For car moving with constant (uniform) velocity resultant force is zero”.

Option A

Option B

Option C

Option D

Solution

Assume that car start from rest moves on straight line attain uniform (constant) velocity.

When car is at rest resultant force acting on it is zero.

When external force act on car its velocity increase that means it has accelerated motion. Here, we neglect internal forces.

Frictional force act parallel to surface hence, car is accelerated but when car moves with constant velocity no force act on it.

Standard 11

Physics

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