Question

A freight train car has a mass of 2,000 kilograms and an acceleration of 1.8 m/s/s. ​What is the average force behind that train car?

Answer 1

The average force behind the train car is 3,600 Newtons.

Step-by-step explanation:

To determine the average force behind a freight train car, we can use Newton's second law of motion which states that force (F) is equal to mass (m) times acceleration (a). In this case, the mass of the train car is given as 2,000 kilograms and the acceleration is given as 1.8 m/s/s. Plugging these values into the formula, we get:

F = m * a = 2,000 kg * 1.8 m/s/s = 3,600 N

Therefore, the average force behind the train car is 3,600 Newtons.

Answer 2

F = 3600 [N]

Step-by-step explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of force must be equal to the product of mass by acceleration.

ΣF = m*a

where:

F = force [N]

m = mass = 2000 [kg]

a = acceleration = 1.8 [m/s^2]

Now replacing:

F = 2000*1.8

F = 3600 [N]