Question

A train is moving on a circular curve of radius 1500m at the rate of 66km per hour. Through what angles has it turned in 10seconds?

Answer 1

distance covered by train=speed x time
=66 x 5/18 x 10 m
=550/3m
we know
@=l/r
where @ is angle made by train in circle , l is distance covered by train and r ia the radius of circular curve in which train moves .
now,
@=(550/3)/1500=550 /4500=11/90 radian
hence @=11/90 x 180/pi degree
=7 degree