Question

The mass of the train is 450 000 kg. Calculate the maximum possible speed of the train at the end of the first 4.0 km of the journey.

Answer 1

Answer:

80 m/s

Explanation:

Hi, Let's Begin with the explanation.

Work Done = 0.5 * m* s * v^2

v^2=(2 * work done)/mass

v^2=(2*1440000)/450000

v=80 m/s

Answer 2

Answer: 80 m/s

Explanation: Hi!

v^2 = 2 x 1,440,000 / 450,000

v = 80 m/s

Therefore the maximum possible speed is 80 m/s.