- #1
engineer2010
- 10
- 0
Quick help with Power problem!
What is the minimum horse power a motor must have to be able to drag a 310 kg box along a level floor at a speed of 1.2 m/s if the coefficient of friction is .45
fg=mg - - - > (c of f) (fn)= Ff
P = Fv
I found Ff to be 1367 N but I am unsure of how to find the force with the motor is putting on the box.. I know that the box is not acclerating. so i tried going -1367 +F= 0 and the putting that in the power formula but that did not give me the correct answer
Homework Statement
What is the minimum horse power a motor must have to be able to drag a 310 kg box along a level floor at a speed of 1.2 m/s if the coefficient of friction is .45
Homework Equations
fg=mg - - - > (c of f) (fn)= Ff
P = Fv
The Attempt at a Solution
I found Ff to be 1367 N but I am unsure of how to find the force with the motor is putting on the box.. I know that the box is not acclerating. so i tried going -1367 +F= 0 and the putting that in the power formula but that did not give me the correct answer