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how to make a  science working model project on topic a hand cart with steering wheel and brakes that works on principle of alternate sources of energy?please give me some idea on physics principle which will me to make brakes of hand cart which will based on alternative source of energy.

Asked by abinash.gupta003 8th November 2017, 6:27 PM
Answered by Expert
You can use solar energy to power the handcart.
You will need good solar cell and High torque motor which works at low voltage.
Energy from the solar cell can also be to operate a standard braking mechanism based on friction.
Which works by a breaking pad coming in contact with the wheel and slowing it down.
Answered by Expert 6th December 2017, 3:58 PM
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