question archive A uniform plank is 6
A uniform plank is 6
Subject:PhysicsPrice:2.87 Bought7
A uniform plank is 6.0m long and weighs 80N. It is balanced on asawhorse at its center. An additional 160 N weight is now placed onthe left end of the plank. To keep the plank balanced, it must bemoved what distance to the right?
6
2
1.5
1.0
.5
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Answer:
x is the distance moved
summing torque about the sawhorse
160*(3 - x) = 80*x
x = 3*160/240
x = 2 m
