(11%) Problem 7: A thin cylindrical ring starts from rest at a height hy = 77 m. The ring has a radius R = 12 cm and a m

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11 Problem 7 A Thin Cylindrical Ring Starts From Rest At A Height Hy 77 M The Ring Has A Radius R 12 Cm And A M 1 (102 KiB) Viewed 24 times

(11%) Problem 7: A thin cylindrical ring starts from rest at a height hy = 77 m. The ring has a radius R = 12 cm and a mass M = 9 kg. R ✓20% Part (a) Write an expression for the ring's initial energy at point 1, assuming that the gravitational potential energy at point 3 is zero. E₁=Mgh₁ ✔ Correct! ✓20% Part (b) If the ring rolls (without slipping) all the way to point 2, what is the ring's energy at point 2 in terms of h2 and v₂? E₂ = Mgh₂ + M v₂² ✓ Correct! 20% Part (c) A 20% Part (d) Given h₂ = 35 m, what is the velocity of the ring at point 2 in m/s? What is the ring's rotational velocity in rad/s at point 2? 3 Ⓒtheexpertta.com ▷ A 20% Part (e) After passing point 2 the hill becomes frictionless and the ring's rotational velocity remains constant. What is the linear velocity of the ring at point 3 in m/s?