Question

8. A train 255 m long passes another stationary train which is 170 m long in 25 seconds. How long will
it take to cross
(i) an electric pole? (answer -15 sec)
(it) platform of length 221 m?( answer - 28 sec). please answer​

Answer 1

Answer:

there is speed

speed = distance\time

speed = 170\25

speed = 6.8 m\s

so

distance of electrical pole =speed×time

distance = 6.8 ×15 = 102 m

ii) speed = 221\28

speed = 7.89 m\s