The force F (in Newtons) required to move a box of mass m kg in motion by
Question:
The force F (in Newtons) required to move a box of mass m kg in motion by pulling on an attached rope (Figure 33) is
where θ is the angle between the rope and the horizontal, ƒ is the coefficient of static friction, and g = 9.8 m/s2. Find the angle θ that minimizes the required force F, assuming ƒ = 0.4. Find the maximum value of cos θ + ƒ sin θ.
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Let F0 k sin 0 cos e where k 0 is a proportionality constant and 0 0 Solve F0 ...View the full answer
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