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woleraymond
A 40 N force applied at an angle of 37 degrees above the horizontal pulls a 5-kg box on a horizontal floor. The acceleration of the box is 3m/s^2. How large a fritional force must be retarding the motion of the box?
1. From the acceleration, work out the net horizontal force. 2. What is the value of the horizontal component of your 40-newton force ? 3. Work out the frictional force
DO you mean 40 - 3x 15
No, I don't. Use the 3 questions I provided in the right order. You can answer question 1, then draw a diagram and answer question 2. Will be here to help a few minutes more.
u mean 40cos 37 - 3x5