Question

please tell the answer if question4 and 5​

Answer 1

4.the displacement of particle is 2 1/2m because it completed, l1/2 revolution for one revolution it displacement will be zero so,the 1/2 displacement can be calculated by the half diameter .

5. a)for half of the circle

distance becomes πr and displacement is 2r

b)for full circle

distance is 2πr and displacement is zero.

as per my knowledge in for distance it posses and angular motion.

for displacement consideration is straight line motion

Answer 2

this is the answer. question 5 later