Question

The length of the second hand of a watch is 1 cm. The velocity vector of the tip of the second hand in cm per second is –

• A. 2p
• B. $\frac{2\pi}{60}$
• C. $\frac{2\pi}{12 \times 60}$
• D. $\frac{2\pi}{24 \times 60}$

Answer 1

Answer: (B)

$\frac{2\pi}{60}$

Answer 2

w = $\frac{2\pi}{60}$, v = wr = $\left( \frac{2\pi}{60} \right)$× 1