A train pulls the boxcars. What are the vertical forces present?(1 point)
Responses
weight, pull of air on boxcars
weight, pull of air on boxcars
weight, push of tracks against wheels
weight, push of tracks against wheels
pull of air on boxcars, push of tracks against wheels
pull of air on boxcars, push of tracks against wheels
weight, friction
weight, push of tracks against wheels
The vertical forces present when a train pulls the boxcars are the weight of the boxcars and the push of the tracks against the wheels. So, the correct answer is: weight, push of tracks against wheels.
To determine the vertical forces present in this scenario, we need to consider the forces acting on the boxcars. Here's how to determine the answer:
1. Identify the main force acting on the boxcars: The weight of the boxcars. Gravity exerts a downward force on the boxcars, causing them to have weight.
2. Consider the resistance forces: The pull of air on the boxcars might create an upward force due to air resistance. Additionally, the push of tracks against the wheels might also create an upward force due to the normal force between the tracks and wheels.
3. Assess the options given: Looking at the provided options, we can see that the correct answer is option 2: weight, push of tracks against wheels. This is because the weight (downward force due to gravity) and the push of tracks against the wheels (upward force exerted by the tracks) are the two vertical forces present.
Therefore, the correct answer is weight, push of tracks against wheels.