What Forces Act on a Car Pushing a Block in Physics?

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SUMMARY

The discussion focuses on the forces acting on a car as it pushes a block across a surface. Key forces identified include the normal force acting upwards, gravitational force acting downwards, the force exerted by the block on the car, and the frictional force opposing the car's motion. Participants emphasize the importance of correctly labeling each force in a free body diagram and clarify the action-reaction pairs as defined by Newton's Third Law. The conversation highlights the necessity of understanding these forces to accurately depict the dynamics of the system.

PREREQUISITES
  • Understanding of Newton's Laws of Motion
  • Familiarity with free body diagrams
  • Basic knowledge of forces such as friction and gravity
  • Ability to interpret vector forces
NEXT STEPS
  • Study the principles of Newton's Third Law of Motion
  • Learn how to construct free body diagrams for various systems
  • Research the effects of friction on motion in physics
  • Explore the concepts of action-reaction force pairs in different contexts
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding the dynamics of forces in motion.

TylerK
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Homework Statement


A car pushes a block across the floor. (assume that it is moving from left to the right)

Draw a free body diagram for the car showing: Force by block on car. Force of friction. Force of Gravity. Normal force.

Homework Equations


The Attempt at a Solution



Normal force Straight up, gravity straight down. Force of box on car going left + force of friction going left.
 
Last edited:
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alright, i'll attach something for you

Note: Remember that no matter what your object is, it will remain as a box. Do not bother into details, only what that object (or system) it is.
 

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is "force by rabbit" the same as force of car on rabbit? I interpreted that as the equal and opposite reaction push back onto the car from the rabbit.
 
they are action-reaction pairs I think, but no, they are separate forces. Remember to label each one with a different name.
 
TylerK said:

Homework Statement


A car pushes a block across the floor. (assume that it is moving from left to the right)

Draw a free body diagram for the car showing: Force by block on car. Force of friction. Force of Gravity. Normal force.
when did the block change into a rabbit?
Normal force Straight up, gravity straight down. Force of box on car going left + force of friction going left.
if the friction force on car and force of block on car both point left, how does the car move to the right?
 

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