A roller coaster car with a mass of 225.1 kg starts from a height of 102.3 meters above the ground just before rolling down the frictionless track. Using conservation of energy, find the speed of the car just as it reaches the ground.

After the car reaches the ground, it travels horizontally on the track, where a frictional force of 836.3 Newtons slows the car to a stop. What is the work done on the car in bringing it to rest?

How far will the car go before it comes to rest?

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