Question

B
EXAMPLE 1. In Fig. 3.12, a
particle moves along a circular
path of radius r. It starts from
point A and moves anticlock-
wise. Find the distance travelled
by the particle as it (i) moves
from A to B (ii) moves from A to C
(iii) moves A to D (iv) completes
one revolution. Also find the
magnitude of displacement in
C
D
each case.
Fig. 3.12​

Answer 1

Answer:

πr/2+2r

πr+2r

1/3*2πr+2r

2πr