Question
What net braking force must be applied to stop a car with a mass of 900 kg initially travelling at a velocity of 100 km/h within a straight-line distance of 50 m?
Answers
(Braking Force) x distance = Initial Kinetic Energy
Force times distance is work done against friction, which must equal the initial kinetic energy.
Change 100 km/h to m/s before calculating Kinetic Energy
For the Kinetic Energy formula, read my answer to your previous question.
Force times distance is work done against friction, which must equal the initial kinetic energy.
Change 100 km/h to m/s before calculating Kinetic Energy
For the Kinetic Energy formula, read my answer to your previous question.
200
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