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Physics-

General

Easy

Question

A toy car of mass 5 kg moves up a ramp under the influence of force $F$ plotted against displacement $x$ . The maximum height attained is given by

$y_{m a x} = 20 m$
$y_{m a x} = 15 m$
$y_{m a x} = 11 m$
$y_{m a x} = 5 m$

The correct answer is: $y subscript m a x end subscript equals 11 m$

Work done = Gain in potential energy
Area under curve $equals m g h$
$rightwards double arrow fraction numerator 1 over denominator 2 end fraction blank cross times 11 cross times 100 equals 5 cross times 10 cross times h rightwards double arrow h equals 11 m$

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