Question

3 examples of rectilinear motion

Answer 1

motion of light
a body moving in straight path.
a car traveling in straight path.

Answer 2

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Now lets come on the answer...
The three examples of rectilinear motion are...
1.Army mens doing marchpast.
2. Cars moving on highway
3.Sprinter in a 100 metre race move along a straight track.

For more reference you can check the image...