# College Physics

posted by .

A 1200-kg car going 30 m/s applies its brakes and skids to rest. If the friction force between the sliding tires and the pavement is 6000 N, how far does the car skid before coming to rest?
Can you help me get the formula to use .
Thanks

• College Physics -

Set the work done against friction equal to the initial kinetic energy and solve for X

(1/2) M Vo^2 = 6000 * X

X = (1/1200)M Vo^2

Vo is the initial velocity, 30 m/s.

## Similar Questions

1. ### physics

a 1200 kg car going 30 m/s applies its brakes and skids to rest. if the friction force between the sliding ires and the pavement is 6000 N, how far does the car skid before coming to rest. I know the ans is 90 m what work/energy formula …
2. ### physics

A car moving at 35 mi/h is stopped by jamming on the brakes and locking the wheels. The car skids 53 ft before coming to rest. How far would the car skid if it were initially moving at 56 mi/h?
3. ### physics

The coefficient of sliding friction between rubber tires and wet pavement is 0.50. The brakes are applied to a 750 kg car traveling 30 m per second, and the car skids to a stop. What is the magnitude and direction of the force of friction …
4. ### physics

you are traveling in your car at a velocity of 24.0 m/s east when you slam on your brakes. The force of friction on your car tires is 1.80x10^4 N. If the mass of you and your car is 1.50x10^3 kg, how far do you skid before stopping?
5. ### Physics

A car of mass 1550 kg is travelling at 75.0 km/h on a dry horizontal concrete surface when the driver applies the brakes licking the wheels. (a) How far does the car travel before coming to rest?
6. ### physics

you are driving your new car 14.0m/s east when you slam on your brakes to avoiavoid having your first collision. The force of friction on your car tires is 1.5kN and the combined mass of your car is 1200kg. Detemine the (a). direction …
7. ### Physics

A sports car skids to a stop, leaving skid marks 290 m long. If the coefficient of kinetic friction between tires and pavement is 0.80, how fast was the car going before the skid?
8. ### PHYSICS

A car is travelling at 60km/h when applies his brakes.If the car decelerates uniformly at 5.6m/s2,how far does the car go after the brakes are applied before coming to rest?
9. ### physics -plz help

1) A car is moving at 100 km/hr. Its mass is 950 kg. Find its KE. 2) What force is needed to accelerate a 1300-kg car from rest to 20 m/s in 80 m?
10. ### Physics

The driver of a car is going 30 m/s slams on his brakes, the car's tires lock, and the car skids to a stop on a level roadway. The kinetic coefficient of friction between its tires and the pavement is 0.75 as it slides. Draw a free …

More Similar Questions