Question

the radius of the wheel of a car is 35cm .the car takes 1 hr to cover 66km. find the number of revolution that wheel of the car makes 1min ​

Answer 1

=37 kg

per kg=300

tax=5.6%

Answer 2

Answer:

500 revolutions

Step-by-step explanation:

Given:

• Radius of the wheel (r) = 35 cm

• Time taken by the car to cover 66 km = 1 hour = 60 minutes

To find:

Number of revolutions made by the wheel in 1 minute

Method to find:

First, we need to find the circumference (C) of the wheel.

C = 2πr

(Taking π as 22/7)

⇒ C = 2 * 22/7 * 35

⇒ C = 220 cm = 2.2 m

Now, we need to find the distance covered by the wheel in a minute.

If it covers 66 km in 1 hour (60 minutes), then in 1 minute it will cover:

66/60 = 1.1 km = 1,100 m

Finally, we can find the number of revolutions made by the wheel in a minute.

Distance covered by the wheel in a minute = 1100 m

Circumference of the wheel = 2.2 m

So, number of revolutions made by the wheel in a minute =

⇒ 1100/2.2 = 500 revolutions

Hence, the wheel makes 500 revolutions in a minute. Hope it helps!