A) zero
B) 2R
C) \[2\pi R\]
D) \[7\pi R\]
Correct Answer: B
Solution :
[b] Number of laps completed \[=\frac{(2\times 60+20)s}{40s}\] =3.5 Displacement = R + R = 2R OR [b] Time taken to complete the circular path of radius R = 40 seconds Total time = 2 min 20 sees = 140 sees In 120 seconds the player completes 3 circular paths and in the next 20 sees the player will be at the other end of the diameter. \[\therefore \] Displacement = Diameter of the circle = 2R
You need to login to perform this action.
You will be redirected in
3 sec
