Question

The wheel of a bullock cart has a diameter of 1.4m
How many rotations will the wheel complete as the cart
travels 1.1km?
Radius of wheel = diameter 2
Radius of wheel = 1.4+2=0.7m​

Answer 1

Answer: 78900000.

Step-by-step explanation: good perfect

Answer 2

Given : The diameter of wheel of bullock cart = 1.4 m

: The number of rotations (revolutions) of the wheel of the bullock cart will travel 1.1 km

Radius of the wheel

= diameter ÷ 2

= 1.4 ÷ 2

= 0.7 m

One revolution = one circumference of the wheel

The circumference of the wheel = 2πr units

( In which r is the radius of the wheel )

$= 2 \times \frac{22}{7} \times 0.7$

$4.4m$

So,

the wheel travels 1.1 km

= 1.1 × 1000

= 1100 m

(since 1 km = 1000 m, to convert km to m we have to multiply 1000 to the given km)

So,

One revolution = 4.4 m

Number of revolutions for 1100 m will be

$= \frac{1100}{4.4}$

= 250 revolutions

Hence,

The wheel of the bullock cart will take 250 rotations.