- #31
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Sorry, my mistake. I should have posted:Vibhor said:
I specified level ground, one set of wheels braking and the other freewheeling. Why would the car be getting faster? etc.
Static Friction of a Car's Tyre
- Thread starter Jimmy87
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Static friction plays a crucial role in a car's motion, as it allows the tires to grip the road without slipping. While static friction helps propel the car forward, it does not oppose motion unless the wheels begin to skid, at which point kinetic friction takes over. When brakes are applied, the friction generated by the brake system slows the car down, but this is distinct from road friction, which only acts when the wheels are not rolling. Experiments with different ramp surfaces show that increased friction, like sandpaper, does not necessarily decrease acceleration, as rolling resistance and other factors also influence motion. Understanding these dynamics clarifies how friction interacts with a car's movement and braking.
I specified level ground, one set of wheels braking and the other freewheeling. Why would the car be getting faster? etc.
- #32
Vibhor
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Oh ! Now I am getting confused . When brakes are applied on rear wheels and none of the wheels slip ,then isn't friction acting in forward direction on front wheels (car moving on level ground ).
- #33
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Yes, and that is what I wrote in post #25 (except that I referred to braking wheels and freewheeling wheels, rather than specifically front and back).Vibhor said:
In your post #28 you agreed with that if the car is decelerating, but suggested it would not apply if the car is accelerating. I responded in post #31 by asking how it could be that the car is accelerating, given that some wheels are braking and the rest freewheeling, leaving none driving.
- #34
Vibhor
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Thanks 