Question

5. A 80 m long train crosses a 60 m platform in 9 seconds. Find the speed of the train in km h'
6. Rohan and Tarun start running from the same place at the same time. If Rohan's speed is
4 kmh and Tarun's speed is 6 km h , find the distance between them after 4 hours if they run in:
(a) the same direction
(b) opposite directions​

Answer 1

Answer:

5.Let ST denotes the required speed of the train in km/hr.

Hence from above data we get as follows,

ST = (80 + 60)/9 = 140/9 (m/s)

or ST = (140/9)*(3600/1000) = 56 (km/hr)

ep explanation: