The discussion focuses on calculating the force required to push a 75 lb block up an incline at a constant speed, considering a coefficient of kinetic friction of 0.25. Participants emphasize the importance of calculating both the parallel and perpendicular components of the applied force (Fapp) before applying Newton's laws of motion. The correct approach involves using the equations Ff = μN and ΣF = ma, ensuring all forces acting on the block are accounted for. Miscalculations arise when these components are not properly resolved.
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What is the angle of the incline?Qwap said:What is the magnitude of the force F (assumed horizontal) required to push the block up the plane at a constant speed? Take the coefficient of kinetic friction to be 0.25. Block is 75 lb
Show your calculations for these termsI used Ff= mewN and found Wparallel
You need first to calculate the parallel , and perpendicular to the incline, components of F app before solving by using Newton's laws in both dirctions.Did Ʃ=ma
Fapp-Ff-Wparallel= ma
but i keep getting wrong answer