the formula for getting the distance will be distance = speed x time D = S x T speed or velocity = 50km/h time = 0.5 h the equation will be done directly because it's already in it's SI units distance = 50km/h x 0.5h hour cancels hour and the equation remains = 50km x 0.5 Ans = 25 km the train will move 25 km far in 0.5h