In the figure, wheel A of radius rA = 11.7 cm is coupled by belt B to wheel C of radius rc = 20.8 cm. The angular speed of wheel A is increased from rest at a constant rate of 2.68 rad/s². Find the time needed for wheel C to reach an angular speed of 89.1 rev/min, assuming the belt does not slip. (Hint: If the belt does not slip, the linear speeds at the two rims must be equal.) B

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Your answer is partially correct.
In the figure, wheel A of radius TA = 11.7 cm is coupled by belt B to wheel C of radius rc = 20.8 cm. The angular speed of wheel A is
increased from rest at a constant rate of 2.68 rad/s². Find the time needed for wheel C to reach an angular speed of 89.1 rev/min,
assuming the belt does not slip. (Hint: If the belt does not slip, the linear speeds at the two rims must be equal.)
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6.64
O
2
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B
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Transcribed Image Text:rrent Attempt in Progress Your answer is partially correct. In the figure, wheel A of radius TA = 11.7 cm is coupled by belt B to wheel C of radius rc = 20.8 cm. The angular speed of wheel A is increased from rest at a constant rate of 2.68 rad/s². Find the time needed for wheel C to reach an angular speed of 89.1 rev/min, assuming the belt does not slip. (Hint: If the belt does not slip, the linear speeds at the two rims must be equal.) Number eTextbook and Media Hint Save for Later 6.64 O 2 Units B tv MacBook Air Attempts: 1 of 4 used D Submit Answer 3
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Current Attempt in Progress
In the figure here, a cylinder having a mass of 1.4 kg can rotate about its central axis through point O. Forces are applied as shown:
F₁ = 1.4 N, F₂ = 2.1 N, F3 = 6.1 N, and F4 7.0 N. Also, r = 7.8 cm and R = 14 cm. Taking the clockwise direction to be negative, find the
angular acceleration of the cylinder. (During the rotation, the forces maintain their same angles relative to the cylinder.)
Number
eTextbook and Media
Hint
GO Tutorial
Unit
2
F
Rotation
axis
F
tv
MacBook Air
+
Transcribed Image Text:View Policies Current Attempt in Progress In the figure here, a cylinder having a mass of 1.4 kg can rotate about its central axis through point O. Forces are applied as shown: F₁ = 1.4 N, F₂ = 2.1 N, F3 = 6.1 N, and F4 7.0 N. Also, r = 7.8 cm and R = 14 cm. Taking the clockwise direction to be negative, find the angular acceleration of the cylinder. (During the rotation, the forces maintain their same angles relative to the cylinder.) Number eTextbook and Media Hint GO Tutorial Unit 2 F Rotation axis F tv MacBook Air +
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