Question

Express the condition under which the three equations of motion can be used ​

Answer 1

Answer:

Hence, these equations are used to derive the components like displacement(s), velocity (initial and final), time(t) and acceleration(a). Therefore they can only be applied when acceleration is constant and motion is a straight line. The three equations are, v = u + at.

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Answer 2

Answer:

For the 3 equations of Linear motion to be applicable, the object must travel at

i. velocity lesser than speed of light

ii. constant acceleration and

iii. in a straight line.

Explanation:

At the speed of light or even at fractionally lesser speed, the equations of motion cannot be applied due to effect of relativity.

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