## anonymous one year ago a truck with 48 in. diameter wheels is travelling at 50mi/h a. find the angular speed of the wheels rad/min. b. how many revolutions per minute do the wheels make?

1. anonymous

@UsukiDoll

2. UsukiDoll

I'm not that good at these problems.. x*(

3. anonymous

i know the formula for this though lol

4. anonymous

for angular speed it should be $\omega =\theta \div time$

5. anonymous

Remember that radians are distance divided by the raidus.

6. anonymous

Do you know how to convert all the units?

7. anonymous

The radius will be $$24$$ in.

8. anonymous

yes and the rotaions would be 50mi/ 60mins

9. anonymous

$\theta = \frac{x}{r}\\ \omega = \frac{v}{r}$

10. anonymous

which one og the formulas would be used here for angular speed i thought it was $\theta \div time$

11. anonymous

You aren't given any time here, so that formula is of no use.

12. anonymous

You need to think about the relationship of everything.

13. anonymous

First of all, what is $$v$$?