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Friday, September 25, 2015

Equation of Motion for a System of Particles
Learning Goal:
To be able to set up and analyze the free-body diagrams and equations of motion for a system of particles.
Consider the mass and pulley system shown. Massm1 = 36 kg and mass m2 = 15 kg . The angle of the inclined plane is given, and the coefficient of kinetic friction between mass m2 and the inclined plane is μk=0.19.Assume the pulleys are massless and frictionless.










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Part A - Finding the acceleration of the mass on the inclined plane
What is the acceleration of mass m2 on the inclined plane? Take positive acceleration to be up the ramp.


Part B - Finding the speed of the mass moving up the ramp after a given time
If the system is released from rest, what is the speed of mass m2 after 2 s ?



Part C - Finding the distance moved by the hanging mass
When mass m2 moves a distance 2.54 m up the ramp, how far downward does mass m1 move?



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