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

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$y_{max} = 15 m$

$y_{max} = 11 m$

$y_{max} = 20 m$

$y_{max} = 5 m$

answer is C.

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Detailed Solution

Work done by force = Area of a triangle $= W = F . x = 100 \times 11 \times 1 / 2 = 550 J$
$Work done by the gravity = mgh = 550 J \Rightarrow h = \frac{550}{5 \times 10} = 11 m$

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