Question

With the help of a screw jack, even a small child can raise a heavy car. What makes this possible?​

Answer 1

A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. It is commonly used to lift moderately heavy weights, such as vehicles; to raise and lower the horizontal stabilizers of aircraft; and as adjustable supports for heavy loads, such as the foundations of houses.

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Answer 2

Explanation:

s the screw Jack that is used to lift a car for changing wheel works on the principle of a screw when you turn the handle the screw of the Jack turns around and lift the heavy car race at their force increase the force applied on the handle