Calculate the minimum force required

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    Force Minimum
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The discussion revolves around calculating the minimum force required to move a block while considering the angle of applied force (theta) and friction. Participants emphasize the importance of understanding the angle's impact on the force equations, with a consensus that theta should be above the horizontal to minimize friction. The conversation highlights the necessity of using calculus for optimization in more complex scenarios, although simpler methods are suggested for basic problems. Ultimately, the minimum force is linked to the balance of forces, where the applied force equals the frictional force at zero acceleration. The derived formula for minimum force is presented as F(min) = mgμ/√(1+μ²).
  • #51
ALIAHMAD said:
if i take acceleration to be zero I would give me the force that would not move the block
No, when the block moves with a constant velocity it has zero acceleration.
 
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  • #52
Mister T said:
No, when the block moves with a constant velocity it has zero acceleration.
Then it would be kinetic friction that is relevant. The question relates to overcoming static friction.
 

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