1.

A person is driving a vehicle at uniform speedof 5m s^(-1) on a level curved track of radius5m. The coefficient of static friction between tyres and road is 0.1. Will the person slip while taking the turn with the same speed ? Take g=10 ms^(-2). Choose the correct statement.

Answer»

A person will SLIP if `V^(2) = 5MS^(-1)`
A person will slip if `v^(2) gt 5 ms^(-1)`
A person will slip if `v^(2) lt 5 ms^(-1)`
A person will not slip if `v^(2) gt 5 ms^(-1)`

Solution :`v_("max") = sqrt(mu RG)`
`v_("max") = sqrt(0.1 xx 5 xx 10) = sqrt(5)`
or `v_("max")^(2) = 5m^(2)//s^(2)`
`therefore` PERSONS or vehicle will slip if the velocity is more than `sqrt(5)m//s`


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