Locomotive A travels 100km/hr and locomotive B travels 140km/hr. Locomotive B starts 15 kilometers Behind locomotive A and travels on the same direction.

Question

Find the time elapsed and how far each traveled before they meet.

Answer 1

v(B)t-v(A)t=15
t=15/(v(A) –v(B)) = 15/(140-100)=0.375 h = 22.5 min
s(A) = v(A)t=100•0.375 =37.5 km,
s(B) = v(B)t=140•0.375=52.5 km

Answer 2

thanks you!