The angular position of a point on a rotating wheel is given by = 2.0 +
Question:
The angular position of a point on a rotating wheel is given by θ = 2.0 + 4.0t2 + 4.0t3, where θ is in radians and t is in seconds. At t = 0, what are?
(a) The point's angular position and
(b) Its angular velocity?
(c) What is its angular velocity at t = 4.0 s?
(d) Calculate its angular acceleration at t = 2.0 s.
(e) Is its angular acceleration constant?
Step by Step Answer:
If we make the units explicit the function is 0 20 rad 40 rads t 20 rads bu...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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Angular movements are produced when the angle between the bones of joint changes. There are several different types of angular movements, including flexion, extension, hyperextension, abduction, adduction, and circumduction. Flexion, or bending, occurs when the angle between the bones decreases. Moving the forearm upward at the elbow or moving the wrist to move the hand toward the forearm are examples of flexion. The extension is the opposite of flexion in that the angle between the bones of a joint increase.
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