A car of mass 1000 kg negotiates a banke...

A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road.If the banking angle is `45^(@)`,the speed of the car is

`6ms^(-1)`

`10ms^(-1)`

`20ms^(-1)`

`30ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:

`tan theta=(v^(2))/(rg)`
`v=sqrt(rg tan theta)=sqrt(90xx10xx1)=30 m//s`

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