Homework Help: Physics

Posted by tania on Wednesday, February 16, 2011 at 9:07am.

A braking system is used to prevent the car travelling
faster than 27 m s–1.The car and passengers shown in the diagram have a total mass of 750 kg. The length of track from P to Q is 80 m. Calculate the average braking force that would be required if the speed of the car is to be limited to 27 m s–1.

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