- #1
physicsnerd7
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Trick Question?? Please help!
John hangs a picture of his lovely family on the fridge with a magnet. The magnet applies a force of 15 N. If the magnet and the picture have a mass of 500 g. The coefficient of static friction is 0.40 and the coefficient of kinetic friction is 0.35. Calculate the acceleration of the magnet and picture. Include and FBD with your answer.
Fs = μs Fn
Fg = mg
Fk = μk Fn
Fs = (0.40) (15N)
= 6.0 N
Fg = (0.5 kg) (9.80 N/kg)
= 4.9 N
Fk = (0.35) (15N)
= 5.25 N
Since the magnet doesn't overcome the Fs then it won't move right? but my teacher says you can solve this. How??
Homework Statement
John hangs a picture of his lovely family on the fridge with a magnet. The magnet applies a force of 15 N. If the magnet and the picture have a mass of 500 g. The coefficient of static friction is 0.40 and the coefficient of kinetic friction is 0.35. Calculate the acceleration of the magnet and picture. Include and FBD with your answer.
Homework Equations
Fs = μs Fn
Fg = mg
Fk = μk Fn
The Attempt at a Solution
Fs = (0.40) (15N)
= 6.0 N
Fg = (0.5 kg) (9.80 N/kg)
= 4.9 N
Fk = (0.35) (15N)
= 5.25 N
Since the magnet doesn't overcome the Fs then it won't move right? but my teacher says you can solve this. How??