Question

Rohit is moving along circular path of radius 'r' .How much is his displacement after half cycle?
a. r
b. 2r
c. 3r
d. 4r​

Answer 1

Answer:

Displacement is the shortest distance travelled from the initial point to the final point. After half revolution the displacement is the length of the diameter which is equal to 2r. Hence the displacement is 2r.

Hope it will help you.

Mark as my answer as brain list.

Answer 2

Answer:

b) 2R

Explanation:

Displacement is a vector quantity that means that it is directional so, it is measured only in one direction.

EXTRA TIP - if the questions would be for distance, the answer would be half the circumference i.e. πR