Answer:
36255 Kg.
Step-by-step explanation:
From the question given above, the following data were obtained:
Momentum = 1450200 Kgm/s
Velocity = 40 m/s
Mass =?
Momentum is simply defined as the product of mass and velocity. Mathematically, it is expressed as:
Momentum = mass × velocity
With the above formula, we can obtain the mass of the train as follow:
Momentum = 1450200 Kgm/s
Velocity = 40 m/s
Mass =?
Momentum = mass × velocity
1450200 = mass × 40
Divide both side by 40
Mass = 1450200 / 40
Mass = 36255 Kg
Thus the mass of the train is 36255 Kg