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A cyclist travels with a speed of 36 km^...

A cyclist travels with a speed of `36 km^(-1)` if the angle of inclinatio with vertical is `45^(@)` while he goes around a circle then the radius of the circle is

A

7m

B

10 m

C

5.5 m

D

20 m

Text Solution

Verified by Experts

The correct Answer is:
b
`v=36 xx (5)/(18) =-10 ms^(-1)`
`:. R = (v^(2))/( g tan theta ) = (10 xx 10)/( 10 xx tan 45^(@))`
`= (100)/(10 xx 1) = 10 m`
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