Physics, 05.11.2019 02:31 matthewlucas8613

If only an external force can change the velocity of a body, how can the internal force of the brakes bring a car to rest? 1. it is the driver, not the car itself who causes the breaking, so it is an external force. 2. the engine is stopped, so the car has no force to run further. 3. some internal forces can change the velocity of a body. 4. it is the force of the road on the tires (an external force) that stops the car.

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If only an external force can change the velocity of a body, how can the internal force of the brake...

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