A train running at a speed of 60 km/hr crosses a pole in 9 seconds. what is the length of the train?
speed of train is = 60km/hr;
since the pole is stationary therefore speed of train with respect to pole= 60km/hr
let length of train= x m;
let speed of train=y km/hr
let the time taken be = z seconds;
y=60km/hr;
z=9 s;
x=y*z;
x=60 * 5/18* 9 ( converting speed into m/s)
x=150 m