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Q.

Is it true that a heavy car can be lifted easily with a screw?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
Simple machines are the tools which are used to make our work easy. A heavy car can be lifted easily with a screw. When the tire of the car becomes worn–out, the car has to be lifted a little to change the tire. The car is lifted using a screw jack, and a spanner is used to loosen the bolt. In this way, the tire of the car can easily be replaced.
 
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