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Q.

An unbanked curve has a radius of 60 m. The maximum speed at which a car can make a tum, ifthe coefficient of static friction is 0.75, is

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a

2.1 ms-1

b

14 ms-1

c

21 ms-1

d

7 ms-1

answer is C.

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Detailed Solution

V =μgR=0.75×9.8×60
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