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Hi could you check my work and make sure I did this properly. I think I did something wrong because on letter E shouldn’t I came up with the same answer as I did for letter C. Please help.
PHYS 201 Fall 2017 19- Rigid Body Rotali Model: For a single (point) object travelling around a circle or radius r with angular ve its kinetic energy is We define the moment of inertia I (sometimes called rotational inertia) of this object Thus the kinetic energy is For rotational motion, the moment of inertia is the quantity analogous to mass in linear motion. 2. Consider a ball of mass 2.2 kg attached to a string 0.75 m long travelling in a circle once every 4s seconds. a.. What is themomentofinertiaofthebar? 見. In What is the angularvelocitya of the ball?w=anjalnr veloci t, 5-1-ste-G099-f b. 4S What is the kinetic energy of the ball? d. What is the (linear) speed, v, of the ball (use v ro)? V = (o.lyo)(0.75») Use your answer to d to calculate the kinetic energy of the ball, and compare with your answer to c. e. 2. (2.2)(6.75)(0-140) 0.11553 = 0.01213
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Answer #1

You dave missed te s4ntne in el rn 1.24 19 CU ー2 = 0.0121

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