Calculate the moment of inertia of an '15 kg solid sphere [I = %MR2} with a 12 cm radius if spun around its symmetry axis. 0 72 kg m2 0 0.086 kg m2 0 0.72 kg m2 0 860 kg m2 A solid ball (I : MRZ) of mass 0.5 kg is rolling down a ramp from a height 20 cm, howlr fast will it be rolling at the bottom of the ramp? 0 2.34 m/s .A skater has a mass of 50 Kg, and a moment of inertia of 43 kg Km] "2. and is rotating at 30 rpm. It the skater reduces her moment of inertia by retracting her arms to 32 kg mAZ. what is her angular speed. now? . A disk is rotating at 2 rev/sec. The disk has a moment of inertia of 25 kg m2, If an identical, nunrrotating disk, which has a moment of inertia exactly 92 as iarge, is dropped onto the rotating disk what will be the new rotational speed of the combined rotating object" O 3'0rev/sec O 2'66rev/sec O 1'66rev/sec O 1 33 rev/sec What is the kinetic energy of a solid ball rolling on the level floor, with a 5 cm radius, if its mass is 1.3 kg, and its linear speed on the ground is 3.0 m/s? (I = = mr?) 8.19 J O 5.85 mJ O 11.7 J O 35.1 J What is the angular momentum of a solid ball spinning about its 5 cm radius at 20 rpm, if its mass is 1.3 kg? (I = 2 mr?) 2.72 gm/s 0.136 g m/s 52 gm/s 0.173 gm/sA rope is wrapped around a sphere (I = : MR") so that a force F can be applied perpendicular to the radius of the sphere. If the sphere has a mass of 5.5 kg and a radius of 12 cm, what force will produce an angular acceleration of 2.5 rad/sec-? F r = 12cm M = 5.5 kg 6.67 N 3.33 N 0.667 N 0.333 N Calculate the moment of inertia of a rod spun about its center (I = _ MR") if the mass is 10.0 kg and the length is 22.0 cm. 0.0403 kg m2 403 kg m2 O 0.00183 kg m2 0.183 kg m2