Question

a person is moving along a circular path radius 35cm if he completes in 1 round in 120 sec what will be distance and displacement after 240 sec​

Answer 1

Explanation:

His distance after 240 s =

$2 \times 2\pi \times radius$

=

$4 \times 22 \div 7 \times 35 = 4 \times 22 \times 5 \\ = 22 \times 20 = 440$

Therefore the distance = 440 cm

displacment is the shortest path between initial and final point

therefore in this case initial and final point is same and

displacment = 0