Question

9. An object started travelling from one end of the semi-
circular track and reached the other end. If the length
of the track is 12.56 m calculate the magnitude of its
displacement.
(1) 4 m
(3) 12 m
2) 8m
(4) 2 m​

Answer 1

Answer:

Displacement will be 2r

$2\pi r= 12.56\\r=\frac{12.56}{2\pi }\\r=2 metres$

Displacement = 2r= 4m