Net Force and Driving Force, As Well As Speed And Time

  1. A 1800 kg car is accelerating at 1.5 m s-2 down a highway. There is a total of 750 N of friction forces acting on the car. a. Calculate the size of the driving force acting on the car.

 

 

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  1. a. When the car reaches 78 km h-1 the engine suddenly fails. How far does the car travel before it comes to rest? Assume the friction forces remain constant as the car comes to rest.

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