A vertical rectangular object of uniform mass M=14.4kg has sides a=0.8m and b=3.8m. It is pivoted from point O as shown in the figure below. If a constant force of F=87N, making an angle of 3=37° with the diagonal, is applied, determine the angular acceleration of the rectangle at the instant shown in the figure using Sl units. Express your answer with two decimal places. Please use the convention: Clockwise (+). Counterclockwise (-) when expressing your answer. Hint : The moment of inertia of the rectangle about an axis of rotation possing through its center of mass is 12 Hint2: Don't forger the force of gravity! Take g=9.80 m/s.

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A vertical rectangular object of uniform mass M=14.4kg has sides a=0.8m and b=3.8m. It is pivoted from point O as shown in the figure below. If a constant
force of F=87N, making an angle of B=37° with the diagonal, is applied, determine the angular acceleration of the rectangle at the instant shown in the figure
using Sl units. Express your answer with two decimal places. Please use the convention: Clockwise (+). Counterclockwise (-) when expressing your answer.
Hint1: The moment of inertia of the rectangie obout an axis of rotation possing through its center of mass is
12
Hint2: Don't forget the force of grovity!! Take g=9.80 m/s?.
F
„CM
a
b
Transcribed Image Text:A vertical rectangular object of uniform mass M=14.4kg has sides a=0.8m and b=3.8m. It is pivoted from point O as shown in the figure below. If a constant force of F=87N, making an angle of B=37° with the diagonal, is applied, determine the angular acceleration of the rectangle at the instant shown in the figure using Sl units. Express your answer with two decimal places. Please use the convention: Clockwise (+). Counterclockwise (-) when expressing your answer. Hint1: The moment of inertia of the rectangie obout an axis of rotation possing through its center of mass is 12 Hint2: Don't forget the force of grovity!! Take g=9.80 m/s?. F „CM a b
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