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Physics-

General

Easy

Question

A curved road of diameter 1.8 km is banked so that no friction is required at a speed of $30 blank m s to the power of negative 1 end exponent$ . What is the banking angle?

6 $°$
16 $°$
26 $°$
0.6 $°$

The correct answer is: 6 $degree$

tan $theta equals fraction numerator v to the power of 2 end exponent over denominator r g end fraction equals fraction numerator 30 cross times 30 over denominator 900 cross times 9.8 end fraction equals 0.102$
$therefore theta equals 6 degree$

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