Question

A bicycle wheel makes 5000 revolutions in moving 11km . Find its diameter.​

Answer 1

Step-by-step explanation:

11 km = 11000 m

In 5000 revolutions it goes 11000 m

So in 1 revolution it goes

= 11000/5000

= 11/5 m

1 revolution means circumference of the wheel

Hence 2πr = 11/5 m

where r is the radius of the wheel.

So, 2r = 11/5π

= 11*7/5*22

= 0.7 m

= 70 cm

Therefore, The diameter of the bicycle wheel is 70 cm.

Answer 2

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⭐ Welcome to my answer⭐

Answer:

$<strong>=></strong>11km=11000m$

$<strong> =></strong>In$ $5000$$revolutions$ $it$ $makes$ $11000m$

$<strong>=></strong>Then$ $in$ $1$ $revolution$ $it$ $makes$

$<strong>=></strong>11000/5000 m$

$<strong>=></strong>11/5 m$

$<strong>=></strong>1$ $revolution$ $means$ $the$ $circumference$ $of$ $the$ $wheel$ $then$,

$Circumference$ $of$ $the$ $wheel$= 2πr [/tex]

$<strong>=> </strong>Equating$ $the$ $values$

$<strong>=></strong>2πr = 11/5$ ($r$ $is$ $the$ $radius$ $of$ $the$ $wheel$

$<strong>=></strong>2 r = 11/5.π.$

$<strong> =></strong>r= 0.7/2$

$<strong>=></strong> r= 0.35 m$

$<strong>=></strong>r= 35 cm$

Radius of the wheel is 35cm

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