# rfquiz - Class Quiz 1(R Fletcher[Total 20 marks A Yo—Yo...

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Unformatted text preview: Class Quiz 1 (R. Fletcher) [Total 20 marks] A Yo—Yo of mass M , moment 'f— of inertia Ian, inner radius r and outer radius R, lies on a ‘3 M} I‘M horizontal plane. The cord is pulled vertically upward with a force F. The Yo—Yo stays . in contact with the plane and rolls Without slipping. I (a) [15 marks] Find expressions for: (i) the normal force at the point of contact be- tween the Yo—Yo and the plane (ii) the linear (i.e., translational) acceleration of the Yo—Yo (iii) the frictional force at the point of contact between the Yo—Yo and the plane. (b) [5 marks] Find an expression for the maximum pos- sible value of F if the Yo—Yo rolls without slipping. As— sume that the coefﬁcient of static friction between the Yo—Yo and the plane is p... SoLLdLa-K “{b €10.33 ~ (Slut;- ’1- Onlv’ NLW‘S Row: L}, O F ‘ 1—7: W a)“, .961.de . A" PPCGLT S’o uo‘n 0“} __________________________.._-}uvvtﬁ- Tke. 9:3th 4:: @1350. cmlﬁc diam, in? Conaeqviba‘. :2wa bad? L: W [5:15de ‘l°~‘{u s‘ﬁwﬂbé'a”‘ '“"‘" PM P m game» bag AL» “[0910 Man. dub-MC: 3C- dsxmn.) 3W @M % EE-l Enewéa 045 1-95]; ‘0 K5? 3. txmwu imam Pa = o _ . NW = O (a? mm a,- «rew mm, W “'41 L6,: var/R Fae r/IZ. F CFC/ﬂ, a + o + Fur/g ...
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