Question

A body covered a distance of ‘l’ metre along a semi circular path. Calculate the magnitude of displacement of the body and the ratio of distance to displacement.

Answer 1

Answer:

Calculate the magnitude of displacement of the body, and the ratio of distance to displacement. Solution : If r radius of semicircular path, then l=πr or r=l/π. ∴DistanceDisplacement=l2l/π=π2.

Answer 2

Answer:

☆Definitions:

1) distance- its the total or actual length of the path travelled by object.

2) displacement- it is the shortest path from initial and final position.

☆Solution:

》distance = l = $\pi$R (see the attachment! )

》displacement = 2R

》ratio: $\dfrac{distance}{displacement}$

》 $\dfrac{\pi R}{2R}$

》ratio - $\dfrac {\pi}{2}$

♧hope it helps!♧