Question

The kinetic energy $K$ of a particle moving along a circle of radius $R$ depends upon the distance $s$ as $K=a{s}^2$, where $a=$ constant. Find the magnitude of the force acting on the particle as a function of distance $s$

• A. $F=2as\sqrt{1+\frac{{2s}^2}{R^2}}$
• B. $F=4as\sqrt{1+\frac{{3s}^2}{R^2}}$
• C. $F=3as\sqrt{1+\frac{s^2}{R^2}}$
• D. $F=2as\sqrt{1+\frac{s^2}{R^2}}$

Answer 1

Answer: (D)

$F=2as\sqrt{1+\frac{s^2}{R^2}}$

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