Question

A railway engine is travelling along the circular railway track of radius 1500m with speed of 66km/hr. The angle turned by the engine in 10 second is? A)15/7radian B)7/15radian C)90/11radian 11/90radian

Answer 1

Step-by-step explanation:

a circle with radius r = 1500 m

a train is moving on a circular curve at rate of 66km per hour

therefore speed = 66 km per hr = 66*1000 / 3600

=18.33 m per sec

1 sec the distance covered= 18.33 m

10 sec................................= 18.333*10= 183.33m

now as we know theta (i.e angle) = arc/ radius

= 183.33 / 1500 =0.122 radians is the required angle covered Answer