Question

A railroad tank car contains milk and rolls at a constant speed along a level track. The milk begins to leak out the bottom. The car then

a. Need more information about the rate of the leak.
b. maintains a constant speed.
c. speeds up.
d. slows down.

Answer 1

The answer is option d. slows down.

Step-by-step explanation:

The answer to the question is option d. slows down.

When the milk begins to leak out of the bottom of the railroad tank car, the car will experience a decrease in its mass as the milk is being lost. According to the Law of Conservation of Momentum, if the mass of an object decreases without any external forces acting on it, the object will slow down.

Therefore, as the milk leaks out of the tank car, its speed will slow down over time.