Question

The minute hand of a clock is 10 cm long. Find the displacement
and distance covered from 10.00a.m. to 10.30a.m.

Answer 1

Explanation:

Distance trvellled would be different for different points on the minute hand.

Assuming the point is at the tip of minute hand.

Therefore,

$distance = \pi \times r$

Because in 30 min, minute hand rotates half a circle.

$distance = \pi \times 10$

$distance = 31.4 cm$

Displacement is equal to diameter of the clock.

Therefore,

$displacement = 2 \times r$

$displacement = 2 \times 10$

$displacement = 20 cm$

Hope it Helps!