How Does Friction Both Propel and Slow Down a Car?

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SUMMARY

Friction is a critical force that both propels and slows down a car. When a car accelerates, the engine generates torque that is transmitted to the wheels, which then create friction with the road surface, propelling the vehicle forward. Conversely, friction between the tires and the road is also responsible for deceleration; when brakes are applied, the frictional force opposes the motion, effectively slowing the car down. On a perfectly slippery surface, such as ice, the lack of friction would prevent effective acceleration and braking, leading to loss of control.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Basic knowledge of vehicle dynamics
  • Familiarity with the concepts of friction and traction
  • Awareness of tire-road interaction principles
NEXT STEPS
  • Research the physics of friction in automotive applications
  • Explore tire design and materials for improved traction
  • Learn about anti-lock braking systems (ABS) and their function
  • Investigate the effects of different road surfaces on vehicle performance
USEFUL FOR

Automotive engineers, physics students, driving instructors, and anyone interested in understanding vehicle dynamics and safety.

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Homework Statement


Describe how friction propels a car forward, then explain how friction slows a cars forward motion

anyone have any idea?
 
Physics news on Phys.org
How does the force get from the engine to the road?
What would happen if you tried to accelarate away on perfectly slippery ice?

What do you use to slow a car down?
 

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