Question

a particle goes from point a to point b moving in a semicircle of radius 7m. find its displacement

Answer 1

S = Pie/7 meters

Explanation:

For the above problem, the formula used can be

The relationship between angular and linear displacement

Theta = S × Radius

As given

Theta = 180° = Pie (for semicircle)

Radius = 7m

Then

S = theta / Radius

= (Pie) / 7

S = Pie/7 meters.

Hope it helps