A 25 kg shark is resting on a ramp inclined at a 18° angle above the...
A 25 kg shark is resting on a ramp inclined at a 18° angle above the horizontal. The shark is in your way so you attach a rope to it and attempt to pull it up the ramp with the rope parallel to the ramp. The coefficients of friction between the shark and the ramp are μs=0.45 and μk=0.21.
a. What force do you have to pull with to start the shark moving up the ramp?
b. If you pull with 220 N, what will the shark’s acceleration be?
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