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Question

A cycle can bend upto a maximum angle of 45. If the radius of the bend is 10 m, then what should be the maximum speed of the cyclist so that he does not crash?

A
10 m/s
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B
15 m/s
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C
10 km/h
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D
15 km/h
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Solution

The correct option is A 10 m/s
To avoid crashing, the condition is
tanθ=v2rg
For maximum speed,
tan45=v2max10×10
vmax=100=10 m/s

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