Quiz 4 with Solution Manual - Calculus-based Physics I | PHYS 2110, Quizzes of Physics

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PHYS2110 Section 004. MWF 11:15 - 12:10 Show all work. Answers without visible work will not receive credit. 1. (5 PTS.) A car tire is 58.0 cm in diameter. The car is traveling at a speed of 21.0 m/s. (a) What is the tire’s rotation frequency in rpm? (b) What is the speed of a point at the top edge of the tire? (c) What is the speed of a point at the bottom edge of the tire? Powe whew VU, = RO ( ) Mean (Xb) Une s2Uuy = = 2( 2.0%) ry) waz 2 {2.0% o 240% Ire wes, * ws (BAS) >) ( ar ri ~) D Von =O z= Ws 672 '°7%™ 2. (5 PTS.) a. The moment of inertia of a thin rod of length L and mass M, about one end is 5M. Use the parallel axis theorem to find the moment of inertia of a thin rod about its center. b. Using the result from part a, determine the moment Rotation axis of inertia about the axis of the object shown in the figure. Enter your answer in terms of L,M,m, and m2. (Hint: treat the spheres as point masses). N oe _ te r= ’ 1: Low + Md™ b z™ ss “~“ a f, tat masses | Ton Toa —M(3) eo > . To = mit Toe SMM mo - a AL 2 J T= UM sau * + nce ie L.. 2 mm (4) > Do. 2° ML ow 12 1 - ma iT} Focal +* on + lt re. fe dup ne ryt = jzhe+ 1+ —- Yq 16