When a vehicle is at high altitude (like a hill) it has huge potential energy. As the vehicle comes down the hill, all that energy is lost in the form of heat due to the application of brakes. Suggest some way by which this energy can be temporarily stored in some other form and can be reutilized. Not only suggest the principle but address the engineering challenges appearing in building such an apparatus that can be fitted in automobiles to achieve this. This will reduce our dependence on the fuel.

Question

Emmett

Physics

4 April, 06:28

When a vehicle is at high altitude (like a hill) it has huge potential energy. As the vehicle comes down the hill, all that energy is lost in the form of heat due to the application of brakes. Suggest some way by which this energy can be temporarily stored in some other form and can be reutilized. Not only suggest the principle but address the engineering challenges appearing in building such an apparatus that can be fitted in automobiles to achieve this. This will reduce our dependence on the fuel.

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Dwayne Keller · Answer 1

One way is the spinning of the wheels can be used to charge a battery. Just like with a generator, you can convert the rotational mechanical energy of the wheels spinning into electrical energy due to Faraday's Law of Induction if there are magnets on the wheels.