Question

Select which of the following cases of motions, the distance and the
magnitude of the displacement equal?

(a) If the car is moving on a straight road
(b) If the car is moving in a circular path
(c)The pendulum is moving to and fro
(d)The earth is moving around the sun

Answer 1

Answer:

The pendulum is moving to and fro

Answer 2

Answer:

(a) The distance moved and magnitude of displacement are equal only in the case of motion along a straight line. Because displacement is the shortest path between initial and find path.So, for car moving on straight road, distance moved and magnitude of displacement are equal.