Question

A particle is moving in a circular path of radius r . The displacement after half a circle would be what ??​

Answer 1

Answer:

2r

Explanation:

Since displacement of half circle refers to 2 times r

Answer 2

Answer:

2r

Explanation:

If the radius of a circle is r. Then,the diameter would be 2r. so when he reaches half a circle.then,he reaches the opposite side i.e the diameter.so,the answer is 2r.