How Do Forces Interact on a Frictionless Pulley System with Inclined Planes?

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SUMMARY

The discussion focuses on analyzing forces in a frictionless pulley system involving two masses, m1 and m2, connected by a rope over a massless pulley. Mass m1 is subjected to a force F down a rough inclined plane with an angle θ1, while the force is applied at an angle θ2. Key equations derived include the net force equations for both masses, the normal force, and the acceleration, specifically T - m2g = m2a and Fcosθ2 + m1gsinθ1 - T - μk(Fsinθ2 + m1gcosθ1) = m1a. The importance of free-body diagrams for resolving forces into components is emphasized for accurate calculations.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of trigonometry for resolving forces
  • Familiarity with the concepts of tension and friction in physics
  • Ability to draw and interpret free-body diagrams
NEXT STEPS
  • Study the principles of inclined plane dynamics in physics
  • Learn how to create and analyze free-body diagrams
  • Explore the effects of friction on motion in various scenarios
  • Review the derivation of equations of motion for connected systems
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone studying mechanics, particularly those focusing on systems involving pulleys and inclined planes.

zara2939
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1. A mass m1 is attached to a second mass m2 by a rope that goes over a frictionless and massless pulley. Mass m1 is being pushed down a rough inclined plane with force F. The Angle of the incline is θ1, the force pushing m1 is acting at an angle θ2 . and the coefficient of kinetic friction on the plane is μk

2.
all i need to find it the algebraic solution no actual final answer just equation rearrangement
the x and y component of m1g, T (tension) and μk

equations for x and y components of Fnet

the equation for Normal force

the equation for the acceleration

Ive gotten most of them so far but these ones I am having some sort of mental discrepancy with

b[3]

For acceleration
T-m2g= m2a

Fcosθ2+m1gsinθ1-T-μk(Fsinθ2+m1gcosθ1) =m1a
 
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You need to say what the angles are measured against and what the situation is with m2 ... is it hanging off the end of the rope, on a level frictionless plane... what?

Did you draw free-body diagrams?
To find components of gravity along and perpendicular to the slope, draw the gravity vector on the fbd, draw the axis on it, and resolve the vector against each axis using trigonometry. To see the problem, we need to see your working, not just the results.
 

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