Class 11 Physics: Laws of Motion

Question 1

Newton's first law of motion is also called:

Accepted Answer

Law of inertia

Question 2

If a net force F acts on a body of mass m, the acceleration a is:

Accepted Answer

a = F/m

Question 3

The SI unit of force is:

Accepted Answer

Newton

Question 4

A body of mass 5 kg is acted upon by a net force of 20 N. Its acceleration is:

Accepted Answer

4 m/s²