84. Boxes A and B in Figure P10.84 have masses of 12.0 kg and 4.0 kg, respectively. The two boxes are released from rest. Use conservation of energy to find the boxes' speed when box B has fallen a distance of 0.50 m. Assume a frictionless upper surface. A B

Principles of Physics: A Calculus-Based Text
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Chapter7: Conservation Of Energy
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84. Boxes A and B in Figure P10.84 have masses of 12.0 kg
and 4.0 kg, respectively. The two boxes are released from rest.
Use conservation of energy to find the boxes' speed when box
B has fallen a distance of 0.50 m. Assume a frictionless upper
surface.
A
B
FIGURE P10.84
Transcribed Image Text:84. Boxes A and B in Figure P10.84 have masses of 12.0 kg and 4.0 kg, respectively. The two boxes are released from rest. Use conservation of energy to find the boxes' speed when box B has fallen a distance of 0.50 m. Assume a frictionless upper surface. A B FIGURE P10.84
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