# Answer on Other Physics Question for Steph

Question #65486

A commuter train travels between two downtown stations. Because the stations are only 1.24 km apart, the train never reaches its maximum possible cruising speed. During rush hour the engineer minimizes the travel interval Δt between the two stations by accelerating for a time interval Δt1 at a1 = 0.100 m/s2 and then immediately braking with acceleration a2 = -0.470 m/s2 for a time interval Δt2. Find the time intervals Δt1 and Δt2.

Expert's answer

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

Assignment Expert28.09.2017 09:56Dear Emily,

Since dt_1 = 4.7*dt_2 we have

dt_1 + dt_2 = 4.7*dt_2 + dt_2 = 5.7*dt_2

Emily27.09.2017 14:20Where did the 5.7 come from?

## Leave a comment