286_Physics ProblemsTechnical Physics

286_Physics ProblemsTechnical Physics - 288 Rotation of a...

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288 Rotation of a Rigid Object About a Fixed Axis Section 10.2 Rotational Kinematics: Rotational Motion with Constant Angular Acceleration *P10.2 ω f 2 51 10 2 63 10 43 .. rev min rad s (a) α ωω = = ×− fi t 263 10 0 32 822 10 3 2 . . . rad s s rad s 2 (b) θω tt =+ = + × = × 1 2 0 1 2 8 22 10 3 2 4 21 10 22 2 3 . rad s s rad 2 ej af P10.3 (a) = == i t 12 0 300 400 . . . rad s s rad s 2 (b) = = i 1 2 1 2 4 00 3 00 18 0 2 2 . rad s s rad 2 P10.4 i = 2000 rads, =− 80 0 . r ads 2 (a) t =+= = 2 000 80 0 10 0 1 200 a fa f rad s (b) 0 ωα i t t i = 2000 80 0 25 0 . s P10.5 ππ i = F H G I K J F H G I K J = 100 1 2 10 3 rev 1.00 min min 60.0 s rad 1.00 rev rad s , f = 0 (a) ts = = = π 0 200 524 10 3 . s (b) f + F H G I K J = F H G I K J F H G I K J = 2 10 6 10 6 27 4 rad s s rad . P10.6 i × 3600 377 10 2 rev min rad s . θ × 50 0 3 14 10 2 rev rad and f = 0 2 2 2 2 2 0 3 77 10 2 3 14 10 226 10 + × × . rad s rad rad s 2 e j P10.7 ωπ 500 100 rev s rad s. We will break the motion into two stages: (1) a period during which the
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