A lunch tray is being held in one hand, as the drawing below illustrates. Ls 12 LA Answer L T The mass of the tray itself is 0.185 kg. and its center of gravity is located at its geometrical center. On the tray is a 1.43 kg plate of food and a 0.231 kg cup of coffee. Assume L1 -0.056 m, L2-0.115 m, L3-0.260 m, L4-0.365 m and L5- 0.390 m. Obtain the force T exerted by the thumb. Both the thumb and the finger forces act perpendicular to the tray, which is being held parallel to the ground. Your Answer:

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Chapter1: Units, Trigonometry. And Vectors
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A lunch tray is being held in one hand, as the drawing below illustrates.
Ls
LA
Answer
L₁
T
The mass of the tray itself is 0.185 kg. and its center of gravity is located at its
geometrical center. On the tray is a 1.43 kg plate of food and a 0.231 kg cup of
coffee. Assume L1 -0.056 m, L2-0.115 m, L3-0.260 m, L4 0.365 m and L5-
0.390 m. Obtain the force T exerted by the thumb. Both the thumb and the finger
forces act perpendicular to the tray, which is being held parallel to the ground.
Your Answer:
Transcribed Image Text:A lunch tray is being held in one hand, as the drawing below illustrates. Ls LA Answer L₁ T The mass of the tray itself is 0.185 kg. and its center of gravity is located at its geometrical center. On the tray is a 1.43 kg plate of food and a 0.231 kg cup of coffee. Assume L1 -0.056 m, L2-0.115 m, L3-0.260 m, L4 0.365 m and L5- 0.390 m. Obtain the force T exerted by the thumb. Both the thumb and the finger forces act perpendicular to the tray, which is being held parallel to the ground. Your Answer:
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