Question

The diameter of the wheel of a vehicle is 1.4 m. How many rotations will the wheel
complete in travelling a distance of 2.2 km?​

Answer 1

Given :-

The diameter of the wheel of a vehicle is 1.4 m.

To Find :-

How many rotations will the wheel complete in traveling a distance of 2.2 km.

Formula Used :-

where,

r = Radius

Solution :-

First, we have to find the radius,

As, we know that,

★ ★

Then,

↦

➦

Now, we have to find circumference of a circle,

Given :

Radius = 0.7 m

According to the question by using the formula we get,

⇒

⇒

⇒

⇒

➠

Hence, the circumference of a circle is 4.4 m.

Now, we have to find how many rotations will the wheel complete in traveling a distance of 2.2 m,

As we know that,

✧ 1 kilometres = 1000 m ✧

Then, 2.2 km = 2.2 × 1000

2200 m

Hence, number of rotation will be,

↪

↪

↪

➤

500 rotations will the wheel complete in traveling a distance of 2.2 m

Answer 2

Answer:

Total no. of revolutions formula = Total Distance covered÷ Diameter of the wheel (πd).