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AP® Physics C: Mechanics

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Panda Precariously Perched on a Piece of Plank: Numeric

APPHMC-53@7RP

John Krehbiel. Created for Albert.io. Copyright 2016. All rights reserved.

A $110\text{ kg}$ panda is sitting on the end of a $2.3\text{ m}$-long plank that extends out from the edge of a cliff by $0.45\text{ m}$, as shown above. Note: The drawing is only approximately to scale

What is the minimum mass of the plank that will allow this to be in static equilibrium?

A

$22\text{ kg}$

B

$71\text{ kg}$

C

$110\text{ kg}$

D

$560\text{ kg}$

E

$690\text{ kg}$