Question

A train of speed 45 m/s crosses a man running in opposite direction with a speed of 5 m/s in 6 s ans crosses a platform in 20 s then find the length of platform​

Answer 1

Answer:

500 m

Step-by-step explanation:

As per the boy relative velocity=50

length of train= 200m

in case of platform it is at rest

so by calculating in 20sec it can travel 900m

but the train length 200 m at the begging and 200m of ending to be subtract so the length of train is 500m