Question

why the motion along a circular path is said to be accelerated? and if the car is moving on a circular track of radius 21 complete one round in time 20 seconds then what is the speed of car​

Answer 1

Answer:

Explanation: r =21

t=20s

speed = distance\ time taken

c = 2πr

c= 2 x 22\7 x 21

c = 132

s=distance\time

s=132\20

s=6.6m\s