Question

A particle is moving in circle of a diameter 15 meter. Calculate the distance covered and displacement when it completes two rounds.

Answer 1

distance is the path travelled by the object
=> distance travelled =2πR×2(bcoz of 2 rounds)
= 2×π×(15/2)×2
= 30π
= 94.2477...
Now displacement is the shortest path and here the particle came back to its initial position that's y here displacement would be zero. ( 0 ).