The angular acceleration of a wheel is a = 8.0t4 - 9.0t², with a in radians per second-squared and t in seconds. At time t = 0, the wheel has an angular velocity of +9 rad/s and an angular position of +7 rad. Write expressions for (a) the angular velocity (rad/s) and (b) the angular position (rad) as functions of time (s). (a) Number i t5. t³+ i Units (b) Number i tó. +4+i t+ i Units i

College Physics
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ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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The angular acceleration of a wheel is a = 8.0t4 - 9.0t2, with a in radians per second-squared and t in seconds. At time t = 0, the wheel
has an angular velocity of +9 rad/s and an angular position of +7 rad. Write expressions for (a) the angular velocity (rad/s) and (b) the
angular position (rad) as functions of time (s).
(a) Number i
t5- i
+³+
i
Units
(b) Number i
tó_
i
+4+
t+
i
Units
i
Transcribed Image Text:The angular acceleration of a wheel is a = 8.0t4 - 9.0t2, with a in radians per second-squared and t in seconds. At time t = 0, the wheel has an angular velocity of +9 rad/s and an angular position of +7 rad. Write expressions for (a) the angular velocity (rad/s) and (b) the angular position (rad) as functions of time (s). (a) Number i t5- i +³+ i Units (b) Number i tó_ i +4+ t+ i Units i
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