_________ b) Which of the following describes the value of in a) [Select all tha
ID: 1587832 • Letter: #
Question
_________
b) Which of the following describes the value of in a) [Select all that are correct]?
The amount of torque necessary for each unit of moment of inertia
The amount of torque necessary for each unit of rotation
The amount of moment inertia for each unit of torque
The amount of mass for each unit of diameter
The amount of moment inertia for each unit of rotation
c) How much time will it take the turntable to reach an angular velocity of f if it starts from rest?
__________
d) Which of the following describes the value of in c) [Select all that are correct]?
The time interval for one unit of increase in angular displacement
The amount of change in the angular velocity in each unit of torque
The time interval for one unit of increase in angular velocity
The amount of change in the angular velocity in each unit of time
The amount of angular displacement in each unit of time
Explanation / Answer
a) Moment of inertia of turnable, I = 0.5*M*R^2
= 0.5*M*(d/2)^2
= M*d^2/2
now Apply, Torque = I*alfa
= M*d^2*alfa/2
b) 1) The amount of torque necessary for each unit of moment of inertia
c) Apply, wf = wi + alfa*t
==> t = (wf - wi)/alfa
= (wf - 0)/alfa
= wf/alfa
d) 4) The amount of change in the angular velocity in each unit of time
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