Homework Help: physics

Posted by CJ on Wednesday, March 28, 2007 at 12:52pm.

lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.240 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 0.300 kg cup of coffee. Obtain the force T exerted by the thumb and the force F exerted by the four fingers. Both forces act perpendicular to the tray, which is being held parallel to the ground. distance from thumb to Tis .060m, from thumb to finger holding up the tray is .100m, distance from thumb to plate is .240m, distance to cup is.380 and total distance of tray is.400m
T = N (downward)
F = N (upward)

I outlined this before. I will be happy to critique your work.

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