Question

Identify the direction of the angular velocity vector for the second hand of a clock going from $0$ to $60$ seconds?

• A. Outward from the clock face
• B. Inward toward the clock face
• C. Upward
• D. Downward
• E. To the right

Answer 1

Answer: (B)

Inward toward the clock face

Angular velocity $\overrightarrow{v}=\overrightarrow{w}\times \overrightarrow{r}$

The second hand of a clock rotates in clockwise direction.

From figure, the direction of angular velocity is into the plane of page i.e inward toward the clock face (using Right-hand thumb rule).