A car is moving with speed `30m//sec` on a circular path of radius 500 m . Its speed is increasing at the rate of , `2m//sec^(2)`, What is the acceleration of the car

Options

A. `2 m//s^(2)`
B. `2.7 m//s^(2)`
C. `1.8 m//s^(2)`
D. `9.8 m//s^(2)`

Answer

B

Explanation

`a=sqrt(a_(r)^(2)+a_(t)^(2))=sqrt(3.24+4)=sqrt(7.24)=2.7m//s^(2)`.