Question

A player completes a circular path of radius
rin 40s. At the end of 2 minutes 20
seconds, displacement will be

Answer 1

Answer:

2r

Explanation:

2min20sec =140 sec

when the player completes 3 rounds in 120 sec he will be again at the starting point, so disp in 120sec is zero

40sec is taken to complete one circular track

so in last 20 sec the player will cover half the track

so disp will be 2r