Question

Which of these is an example of Rectilinear motion?

A) motion of earth on its axis

B) none of these

C) motion of ray of light

D) Motion of a boy around a circular park

​

Answer 1

Answer:

When we require only one co-ordinate axis along with time to describe the motion of a particle it is said to be in linear motion or rectilinear motion. Some examples of linear motion are a parade of soldiers, a train moving along a straight line, and many more.

Distance and Displacement

So now that we have learned about linear motion we will discuss two terms related to change in position. These are called – ‘Distance’ and ‘Displacement’.

Distance is defined as,