Question

The minute hand of the clock is 4 cm long. The average velocity of the tip of the minute hand between 11:00 am to 11:30 am is:

• A. $1.5\times {10}^{-5}m/s$
• B. $4.4\times {10}^{-5}m/s$
• C. $1.8\times {10}^{-6}m/s$
• D. $3.5\times {10}^{-6}m/s$

Answer 1

The correct option is B $4.4\times {10}^{-5}m/s$

Average velocity $=\frac{TotalDisplacement}{TotalTime}$

$=\frac{2\times 0.04}{30\times 60}=4.44\times {10}^{-5}m/s$