Question

A train is travelling at the rate of 20km per hour on a circular track. Through what angle will it turn in 3 seconds if the radius of the track is
$\frac{1}{12} \: of \: a \: km$

Answer 1

the answer for this is 11.45degree

first convert km/hr into km/sec then multiply by 3


then put vale in formula
1/60=¶/360×2π×1/12