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# tray's center of gravity

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A lunch tray is being held in one hand. The mass of the tray itself is .200 kg, and its center of gravity is located at its geometrical center. on the tray is a 1.00 kg plate of food and a .250kg cup of coffee. obtain the force T exerted by the thumb and force F exerted by the four fingers. Both forces act perpendicular to the tray, which is being held parallel to the ground. distance's end left side tray to thumb .0600m Force T down "" fingers 0.100m Force F up "" to center of plate o.240m '' to center of cup .380m '' to rt side tray .400m

##### Solution Summary

The center of gravity for a tray is determined.

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