Question

A particle is moving in a circular path the displacement after half circle would be

Answer 1

Answer:pi×radius

Step-by-step explanation:

circumference of circle is equal to 2×pi×radius

if displacement is half ..then circumference will became half

Answer 2

Answer:

Step-by-step explanation:

Distance covered while moving in a semicircle is πr. For displacement(only magnitude)first way is to calculate the shortest distance between initial and final points. The other more better way (for magnitude as well as direction) to construct a reference frame and find out change in position vector. As described above the choice of origin did not altered our answer because shifting the origin can change initial and final position vectors but change in position vectors remains the same.