A wheel of radius 2 m rolls on the ground with uniform velocity `4 m s^(-1)`. . The relative acceleration of the topmost point of the wheel with respect to the bottom - most point of the wheel is

Options

A. `2 sqrt10 ms^(-1)`
B. `2 sqrt3 ms^(-1)`
C. `2 sqrt2 ms^(-1)`
D. `2ms^(-1)`

Answer

C

Explanation

v= 2m/s
`v_(N)= sqrt(2^(2) + 2^(2))`
`v_(N)= 2 sqrt2 m//s`