288_Physics ProblemsTechnical Physics

288_Physics - 290 Rotation of a Rigid Object About a Fixed Axis Section 10.3 P10.11 Angular and Linear Quantities Estimate the tires radius at

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
290 Rotation of a Rigid Object About a Fixed Axis Section 10.3 Angular and Linear Quantities P10.11 Estimate the tire’s radius at 0.250 m and miles driven as 10 000 per year. θ π == × F H G I K J F H G I K J s r 100 10 1609 644 10 1 102 10 10 4 7 77 7 . . .. ~ mi 0.250 m m 1 mi rad yr rad yr rev 2 r ad rev yr or rev yr P10.12 (a) vr = ω ; = v r 45 0 250 0180 . . ms m rad s (b) a v r r = 2 2 45 0 250 810 . . m m s toward the center of track 2 bg P10.13 Given r = 100 . m , α = 400 r a d s 2 , i = 0 and i = 57 3 1 00 r a d (a) ωω fi tt =+= + 0 At t = 200 s , f 800 . rad s s rad s 2 af (b) = . m r a d s m s aar rc == = = 2 2 1 00 8 00 64 0 . r a d s m s 2 ar t = . r a d s m s 22 ej The magnitude of the total acceleration is: aaa rt =+ = + = 64 0 4 00 64 1 . 2 The direction of the total acceleration vector makes an angle
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

Ask a homework question - tutors are online