Question

the radius of th wheel is 0.25m.find the number os revolution it will make to travel a distance of 11km

Answer 1

Answer:

Number of Revolutions = 7000

Step-by-step explanation:

Here radius of he wheel ( r ) = 0.25 m

Distance traveled                  = 11 km or 11000 m      [∵ 1 km = 1000 m]

Now, we know that

Number of revolutions = (Distance traveled) ÷ ( circumference of wheel)

∴ Number of revolutions

$=\frac{11000}{2\times \pi \times r}$

Putting values of π = 22/7 and r = 0.25

$= \frac{11000}{2\times \frac{22}{7} \times 0.25}$

$= \frac{11000 \times 7}{2\times 22 \times 0.25}$

       = 7000

Hence,

revolution made by wheel for travelling given distance = 7000