could someone please help me with this question?
see attached file

Question

anonymous · Answer

attachment

anonymous · Answer

i don't get it. how would i draw a graph if they only give me the diameter of the tire?

anonymous · Answer

the diameter of the tire will basically tell you that the nail will either be 0 inches to 52 inches off the ground.

when the tire picked up the nail, the nail will go up then back down after the tire rolled 1 full rotation.... how long is that?  it's the cirumference...

anonymous · Answer

oh so 163.36 cm

anonymous · Answer

yes...

anonymous · Answer

ah okay ! uhmm... so to find what the height of the nail is above ground i have to find the equation of the function first right? :S then convert 0.1 km into cm then plug it into the equation right?

anonymous · Answer

You may find this of use: http://en.wikipedia.org/wiki/Cycloid

anonymous · Answer

@yakeyglee hey thats pretty helpful thank you :)