Question

A wheel of a cart is making 4 revolutions per second
If the diameter of the wheel is 84 cm, find its speed.
Answer
13.6
38.016
10.92
8.92





please solve it ​

Answer 1

Answer:

1056cm/s

Step-by-step explanation:

Diameter of the wheel = 84 cm

So circumference of the wheel

= π×diameter

= 22/7×84cm = 22×12cm = 264cm

Distance covered in 1 revolution

= Circumference of the wheel

In 1 sec there are 4 revolutions

So distance covered in 1sec

= 4×264cm = 1056cm

So speed of the wheel is 1056cm/sec

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Answer 2

Diameter of the wheel =84cm

So circumference of the wheel

ाा multiply by diameter

22/7 multiply 84 cm =22multiply by 12 cm

Distance covered in 1 revolution

Circumference of the wheel

In 1 sec three are 4 revolutions

So distance covered in 1 sec

4multiply by 264 cm=1056cm

So speed of the wheel is 1056 cm/sec

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