Physics

Problem

A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is

45^\circ

, the speed of the car is :- (1)

5 \text{ ms}^{-1}

(2)

10 \text{ ms}^{-1}

(3)

20 \text{ ms}^{-1}

(4)

30 \text{ ms}^{-1}