Question

the length of the hour hand clock is 4.9cm.find the distance travelled by the tip of the hour hand in a week

Answer 1

normally in most of the clocks hour hand is the radius
so radius of the circle
r=4.9cm
pie=22/7
4.9*22/7*2=30.8cm
distance travelled in week=30.8*7
=215.6cm

Answer 2

Answer:

The distance travelled by the tip of the hour hand in a week is 431.2 cm per week.

Step-by-step explanation:

Given : The length of the hour hand clock is 4.9cm.

To find : The distance travelled by the tip of the hour hand in a week?

Solution :

Length of hour hand of clock=4.9 cm

Length of hour is the radius of the clock r=4.9 cm

Circumference of the clock is $C=2\pi r$

$C=2\times \frac{22}{7}\times 4.9$

$C=30.8 cm$

The hour hand moves two times a day from a point.

Distance travel by the hour hand in one day is

$D=30.8\times 2=61.6 cm/day$

Distance travelled in a week i.e, 7 days

$D==61.6\times 7=431.2 cm/week$

Therefore, The distance travelled by the tip of the hour hand in a week is 431.2 cm per week.