A particle moves in a straight line with retardation proportional to its displacement. Its loss of k

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5.Work, Energy, Power and Collision

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A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement $x$ is proportional to

A

$x^2$

B

$e^x$

C

x

D

$log_ex$

Solution

$W=\Delta K E$

$\mathrm{W}=\int \mathrm{F} \cdot \mathrm{d} \mathrm{x}$

Given force $\propto x$

So $W \propto x^{2}$

Standard 11

Physics

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