Question

If a cycle wheel of radius 4 m completes one revolution in two seconds. Then acceleration of a point on the cycle wheel will be

• A. ${\pi }^{2}m/s^2$
• B. $2{\pi }^{2}m/s^2$
• C. $4{\pi }^{2}m/s^2$
• D. $8\pi m/s^2$

Answer 1

The correct option is C

$4{\pi }^{2}m/s^2$

Centripetal acceleration $4{\pi }^2{n}^{2}r=4{\pi }^2{\left(\frac{1}{2}\right)}^2\times 4=4{\pi }^2$