Question

A particle is moving in a circle of diameter 20 m. What is its distance and displacement after (a) half a round and (b) one round?​

Answer 1

Answer:

after half a round= 20 m

after a full round = 62.85 m

Explanation:

half a round= half circle= diameter=20m

1round =πd

π×20m= 62.85m

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Answer 2

Answer:

1. a- the distance is pi and displacement is 2r
2. b-the distance is 2pi and displacement is zero because displacement is the shortest distance between two points