What is the purpose of a jack in lifting a car by it?
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Answer: A jack is used to lift a car to fix punctures in the wheels or other machinery located at the bottom of the car. Mechanical advantage will not change for a machine of given design. A pair of scissors is used to cut relatively soft substances like paper, cloth etc so it does not need high force to do such...
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A jack is used to lift a car to fix punctures in the wheels or other machinery located at the bottom of the car. Mechanical advantage will not change for a machine of given design. A pair of scissors is used to cut relatively soft substances like paper, cloth etc so it does not need high force to do such.
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