- An object can only travel in two directions maximum. Formula to calculate
**displacement**.. If a**train**running at 40 km/hr. passes a person riding parallel to the railway line in the same direction at**25**km/hr. in 48**seconds**, then length**of the train**is A). 200 m B). 300 m. - An object can only travel in two directions maximum. Formula to calculate
**displacement**.. Answer: The**train**could be various lengths! If the**train**is 240 meters long then, to clear the platform the distance traveled would be 480 meters**in 25 seconds**. To calculate the speed divide 3600 (60 min x 60**seconds**) by**25**= 144 and times this be 480 meters =. - Calculation: Let the speed of a
**train**be x m/s and length of**train**be y m. When,**Train**crosses a pole in 12**seconds**. According to the question, we have. ⇒ 12 = y/x. ⇒ y = 12x ---(1) When,**Train**crosses a platform**in 25 seconds**. - A body starts from rest and travels for five
**seconds**to make a**displacement**of**25**m .if it has travelled the distance with uniform acceleration a then a is ... a little above the**train**, with a speed of 5 m/s. The time taken by the bird to cross the**train**is (a) 10 s (b) 12 s (c) 9 s (d) 6 s. Answer.