1 Mastering Physics 10 / Study Guide Questions with Definitive Answers.Terms in this set (17) D > B=E > F > A > C Rank these forces (A through F) on the basis of the magnitude of the torque they apply to the wrench, measured about an axis centered on the bolt.I = x^2(m1+m2+1/3mr) What is the moment of inertia I of this assembly about the axis through which it is pivoted? Express the moment of inertia in terms of mr, m1, m2, and x. Keep in mind that the length of the rod is 2x, not x. 1 / 2
2 α = ((m1−m2)gx)/I Suppose that the rod is held at rest horizontally and then released.(Throughout the remainder of this problem, your answer may include the symbol I, the moment of inertia of the assembly, whether or not you have answered the first part correctly.) What is the angular acceleration α of the rod immediately after it is released? Take the counterclockwise direction to be positive. Express α in terms of some or all of the variables mr, m1, m2, x, I, and g.ω1/ω2 = r2/r1Let wheel 1 rotate at a constant angular speed ω1. Find the ratio ω1/ω2 of the angular speed of wheel
- to the angular speed of wheel 2.
τ1τ2 = r1r2The rotation of wheel 1 is caused by a torque τ1. Find the ratio τ1/τ2 of the torque acting on wheel 1 to the torque acting on wheel 2.
P1/P2 = 1
If the power needed to rotate wheel 1 is P1, what is the ratio P1/P2 of the power of wheel 1 to the power of wheel 2
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