A cyclist turns around a curve at 15, miles/hour . If he turns at double speed, tendency to overturn

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4-1.Newton's Laws of Motion

easy

A cyclist turns around a curve at $15\, miles/hour$. If he turns at double the speed, the tendency to overturn is

ADoubled

BQuadrupled

CHalved

DUnchanged

Solution

(b) $F = \frac{{m{v^2}}}{r}$
$⇒$ $F \propto {v^2}$.
If $v$ becomes double then $F$ (tendency to overturn) will become four times.

Standard 11

Physics

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