Question

Three girls skating on a circular ice ground of radius 200 m start from a point P on the edge of the ground and reach a point Q diametrically opposite to P following different paths as shown in the figure. What is the magnitude of the displacement vector for each? For which girl is this equal to the actual length of path skate?

Answer 1

Hii dear,

# Answer-
a) sA=sB=sC
b) lB=sB

# Explaination-
- Consider sA, sB and sC be the displacements and lA, lB and lC be path lengths by respective girls.
- As displacement is direct distance betn two points, it's same for all girls.
sA=sB=sC=s
- Observing the figure,
lC>lA>lB=sB
- Displacement by girl B is same as her path length.

Hope that is useful...

Answer 2

Answer:

Hope this will help u guys