Question

The second hand on a clock is 8 \text{ cm}8 cm8, space, c, m long. What is the distance the tip of the second hand travels in 101010 minutes? Round your answer to the nearest \text{cm}cmc, m. \text{cm}cm

Answer 1

502

Step-by-step explanation: Khan Academy

Answer 2

The distance the tip of the second hand travels in 10 minutes is 502 cm.

Explanation:

Given : The second hand on a clock is 8 cm long.

To find : What is the distance the tip of the second hand travels in 10 minutes?

Solution :

The circumference of clock is
`C=2\pi r`

The radius is r=8 cm

`C=2* 8* \pi`

`C=16\pi`

i.e. in 1 minute it cover
`16\pi`

In 10 minutes it cover
`16\pi* 10`

In 10 minutes it cover
`160* 3.14`

In 10 minutes it cover
`502.4`

Therefore, the distance the tip of the second hand travels in 10 minutes is 502 cm.