1.Conceptual Question – Limit answer to space provided belowWhile in an inertial
ID: 1565511 • Letter: 1
Question
1.Conceptual Question – Limit answer to space provided belowWhile in an inertial reference frame, you observe an object to be rotating in one direction with a constant angular speed. It is correct to state that there are no external torques acting upon the object? 1.Conceptual Question – Limit answer to space provided belowWhile in an inertial reference frame, you observe an object to be rotating in one direction with a constant angular speed. It is correct to state that there are no external torques acting upon the object?2. The graph describes the position of a rotating gear as a function of time on a log-log scale. a) Through what angle does the gear turn between t = 4 and t = 7 seconds? b) Derive a general expression for the angular position of the object. c) What angular speed does the gear have when t = 23 seconds? 2. The graph describes the position of a rotating gear as a function of time on a log-log scale. a) Through what angle does the gear turn between t = 4 and t = 7 seconds? b) Derive a general expression for the angular position of the object. c) What angular speed does the gear have when t = 23 seconds? NAME: 1) Conceptual Question Limit answer to space provided below While in an inertial reference frame, you observe an object to be rotating in one direction with a constant angular speed. It is correct to state that there are no external torques acting upon the object? a) Of course this is correct. b) Obviously, this is incorrect. c) Additional information is required. Explain your response in the space provided. 2) Graphical Analysis Question Answer on a new sheet of paper An object is observed to move in a straight line and its position is recorded. Angular position as a function of time The graph describes the position of a rotating gear as a function of time on a log-log scale. a) Through what angle does the gear turn between t 4 and t 7 seconds? b) Derive a general expression for the angular position of the object. c) What angular speed does the gear have when t-23 seconds?
Explanation / Answer
1.(b) obviously , this is incorrect.
While in an inertial reference , if object is rotating relative to you, means that there is an external torque acting upon it.
Otherwise , this is no external cause in inertial frame.
2.
Let position in radian = x
And time in second = t
x= [(700-5)/(6-1)]t +5
x= 139 t + 5
Just put values of t in this equation to get your answers.
Thanks
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