Question

04 A particle is moving in a circular path of radius r. The displacement after half a circle would be (a) Zero (b) (d) 2x​

Answer 1

Answer:

The answer will be 2r

Explanation:

After the particle covers half path of the circle, the displacement can be easily calculated by measuring the distance between initial and final points. Displacement after half circle = AB=OA + OB Hence, the displacement after half circle is 2r.

Answer 2

Answer:

2x or 2R

Explanation:

The particle after moving half a circle from its initial position would be 2R away from its initial position (R is the radius)

Distance travelled would be half the perimeter i.e PiR