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maxonik [38]
3 years ago
7

A car wheel is 56 cm in diameter. A. How far does the car go in one revolution of the wheel?

Mathematics
1 answer:
andre [41]3 years ago
6 0

The car moved 175.84 cm in one revolution

The car has moved 17584 cm in 100 revolutions

<em><u>Solution:</u></em>

Given that car wheel is 56 cm in diameter

diameter = 56 cm

To find: distance traveled in one revolution of wheel

Usually wheel is of circular shape

one revolution of wheel = circumference of circle

<em><u>The circumference of circle is given as:</u></em>

c = 2 \pi r

We know that,

diameter = 2(radius)

d = 2r

<em><u>So the circumference becomes:</u></em>

c = \pi d

substitute \pi = 3.14 and d = 56 cm

c = 3.14 \times 56 = 175.84

Thus the car moved 175.84 cm in one revolution

<em><u>B. How far does it go in 100 revolutions</u></em>

Distance covered in 100 revolutions = 100 x Distance covered in 1 revolution

\rightarrow 100 \times 175.84 = 17584

Thus the car has moved 17584 cm in 100 revolutions

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