Please check my answer!
A truck is moving at a rate of 90 km per hour and the diameter of its wheels is 1.25 meters. Find the angular speed of the wheels in radians per minute.

Question

Please check my answer!
A truck is moving at a rate of 90 km per hour and the diameter of its wheels is 1.25 meters. Find the angular speed of the wheels in radians per minute.

steve816 · Answer

I got 2400 radians/min
Is that right?

jchick · Answer

Can you show your work?

jchick · Answer

(R radians / 1 minute) = (2π radians / 1 revolution) × (1 rev / 1.25π meters) × (1000 meters / 1 kilometer) × (90 km / 1 hour) × (1 hour / 60 minutes)

jchick · Answer

Notice that the 'missing' information from the problem is all conversion pairs such as 60 minutes = 1 hour.

jchick · Answer

Everything gets 'chained together' starting with the numerator from the question [find the radians per minute] and ends with the denominator from the question.

jchick · Answer

Do you understand?

jchick · Answer

So from this do you get the same answer?

jchick · Answer

Yes that is correct.

steve816 · Answer

Thanks so much you're awesome :)

error1603 · Answer

k

jchick · Answer

No problem you should fan me so I can help you again in the future easier. If you haven't already it will be highly appreciated.