## Related questions with answers

Question

The wheel of a car has an outer radius of 25 cm. Calculate: a) how far the car has travelled after one complete turn of the wheel, b) how many times the wheel turns for a journey of 1 km.

Solution

VerifiedStep 1

1 of 2a)

Distance travelled after one complete turn of the wheel is the circumference of the wheel $C$ which is given by:

$C=2 \pi r$

Replace $r$ with $25$

$C=2 \pi \times 25=\color{#4257b2}157\ \text{cm}$

b)

The number of wheel turns is the quotient of the total distance travelled and the distance travelled after one complete turn of the wheel

For a journey of 1 $\mathrm{km}$, convert from km to cm by multiplying by 100000

Number of turns is

$\frac{100000}{157}=636.94 \approx \color{#4257b2}637\ \text{turns}$

## Create a free account to view solutions

By signing up, you accept Quizlet's Terms of Service and Privacy Policy

## Create a free account to view solutions

By signing up, you accept Quizlet's Terms of Service and Privacy Policy

## Recommended textbook solutions

#### Probability and Statistics for Engineers and Scientists

9th Edition•ISBN: 9780321629111 (4 more)Keying E. Ye, Raymond H. Myers, Ronald E. Walpole, Sharon L. Myers1,204 solutions

#### Probability and Statistics for Engineering and the Sciences

9th Edition•ISBN: 9781305251809 (9 more)Jay L. Devore1,589 solutions

#### Cambridge IGCSE Mathematics: Core and Extended

3rd Edition•ISBN: 9781444191707Ric Pimentel1,773 solutions

#### Statistics and Probability with Applications

3rd Edition•ISBN: 9781464122163Daren S. Starnes, Josh Tabor2,555 solutions

## More related questions

1/4

1/7