Question

The equations of motion are valid for which of the following types of motion?

(a) Constant energy

(b) Uniformly accelerated

(c) Non-uniformly accelerated

(d) Motion along a curve

I had been asked this question in final exam.

This interesting question is from Kinematic Equations for Uniformly Accelerated Motion in chapter Motion in a Straight Line of Physics – Class 11

Answer 1

Correct answer is (b) Uniformly accelerated

To elaborate: The three equations of motion are valid for uniformly accelerated motion. The equations do not work in situations where the acceleration is non-uniform. In that case it is better to work with the differential forms of velocity and acceleration.