A train engine pulls the boxcars. What are the horizontal forces present?(1 point)
Responses
pull of engine, friction
pull of engine, friction
weight, friction
weight, friction
push of engine, friction
push of engine, friction
pull of engine, weight
The correct answer is:
pull of engine, friction
The correct answer is:
pull of engine, friction
The correct answer is "pull of engine, friction."
To understand why, let's break down each of the options:
1. Pull of engine, friction: This is the correct answer. The engine exerts a pulling force on the boxcars, which propels them forward. Meanwhile, there is also friction between the wheels of the train and the tracks, which helps to maintain traction and ensure the train moves smoothly.
2. Weight, friction: While weight is a vertical force acting downwards due to gravity, it is not a horizontal force. Therefore, this option is incorrect.
3. Push of engine, friction: Trains are generally pulled, not pushed. So, this option is incorrect.
4. Pull of engine, weight: As mentioned earlier, weight is a vertical force, and it acts downwards due to gravity. While both pulling force and weight are present, weight does not contribute to the horizontal movement of the train. Therefore, this option is incorrect.
When analyzing the forces in a situation like this, it's essential to consider the specific forces acting in the horizontal direction. In this case, the force of the engine pulling the boxcars and the force of friction are the horizontal forces present.