2016:
A train 100 m long is running at a speed of 60 km/hr. In what time will it pass a bridge 250 m long?
The speed of the train in m/s = 60 * 5/18 = 50/3 m/s
The total distance covered by the train = 100 + 250 = 350 m
The time taken by the train to cross the bridge = 350 * 3/50 = 21 s
2017:
A car starts from rest and moves with uniform acceleration of 2 m/s2 for 10 s. What is the distance travelled by the car?
The initial velocity of the car = 0 m/s
The acceleration of the car = 2 m/s2
The time taken by the car = 10 s
The distance travelled by the car = 0 * 10 + 1/2 * 2 * 102 = 100 m
