A lunch tray is being held in one hand, as the figure below illustrates. The mas

Question

A lunch tray is being held in one hand, as the figure below illustrates.





The mass of the tray itself is 0.195kg, and its center of gravity is located at its geometrical center. On the tray is a 1.19kg plate of food and a 0.296kg cup of coffee. Assume L1 = 0.0580m, L2 = 0.109m, L3 = 0.239m, L4 = 0.379m and L5 = 0.408m. Obtain the force T exerted by the thumb. This force acts perpendicular to the tray, which is being held parallel to the ground. Can't load diagram - L1 is on thumb, L2 on fingers, L3 on plate of food, L4 on cup coffee, L5 length of tray. HELP PLEASE ASAP

Explanation / Answer

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