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So i did this question and got an answer of 43 N i was wondering if

  • Thread starter tascja
  • Start date
87
0
So i did this question and got an answer of 43 N i was wondering if someone else could try it and tell me what they get.. it its not the same ill explain my steps and see where i went wrong.

1. Homework Statement
A box with a mass of 22 kg is at rest on a ramp inclined at 45 to the horizontal. The coefficients of friction between the box and the ramp are Us = 0.78 and Uk = 0.65.
Determine the magnitude of the smallest force that can be applied onto the top of the box, perpendicular to the ramp, if the box is to remain at rest.


2. Homework Equations
Fnet = 0
Ff = UFn

3. The Attempt at a Solution
I broke the question down into its x and y components.
 

Answers and Replies

737
0
Yes, that's what I get as well.
 
87
0
okay good! thank you!!
 

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