Question

Question No. 3
particle is moving along a circle such that it completes one revolution in 40 s. In 2 minute
20 s, the ratio
Pisplacement
is
Distance
0 0
0
IN
N=
2
11​

Answer 1

answer

= 11:1

explanation

= let the diameter of the circle = x

time taken to complete one revolution = 40 seconds

total time taken by the particle = 140 seconds

it means that particle cover 140/40 rounds in 140 seconds

140/40 = 3.5 rounds

distance covered = 2 x 22/7 x X/ 2 X 3.5 = 22/7 X x 3.5 = 11 x

displacement = diameter of the circle = x

ratio of distance and displacement

=11x:x

=11:1