Question

Two express trains started 5 minutes apart. Starting from rest, each is capable of a maximum speed of 160 km/h after uniformly accelerating over a distance of 2.0 km.

a. What is the acceleration of each train?

a) Same acceleration
b) Different acceleration for each train
c) Acceleration not provided
d) Zero acceleration

Answer 1

The two express trains have the same acceleration because they reach the same maximum speed after accelerating over the same distance.

Step-by-step explanation:

The two express trains have the same acceleration because they reach the same maximum speed after accelerating over the same distance. The acceleration of each train can be calculated using the formula:

Acceleration = (Final Velocity - Initial Velocity) / Time

Since both trains start from rest, their initial velocities are zero. They both accelerate to a maximum speed of 160 km/h, which is equivalent to 44.44 m/s. The time it takes for each train to reach that speed will be different because they started 5 minutes apart.