Question

please answer by solving​

Answer 1

Answer:

b) The diameter of the car wheel is 56 cm. To cover 1760 m distance it takes 1000 rotations.

Step-by-step explanation:

Given :

The diameter of the car wheel = 56 cm.

Distance cover in one rotation

  $=\pi d\\= \frac{22}{7} \times 56\\= 22 \times 8\\= 176c m$

we know that 100 cm = 1 m

So, 1760 m = 176000 cm

So, number of rotations in 1760 m = $=\frac{176000}{176} = 1000$

Answer 2

Here the diameter of the wheel is given to be 56 cm

So, the radius will be 28 cm

We will first find the circumference of the wheel

Circumference = 2πr

                        = 2 × (22/7)  ×  28

                        = 176 cm

This means the wheel will cover 176 cm in one rotation

We have to find the number of rotations needed to cover 1760 m distance

1760 = 1760 × 100 cm

       = 176000

Number of rotations needed = 176000/176

                                               = 1000

Hence, 1000 rotations will be needed to cover a distance of 1760 m