A system that is acted upon by concurrent forces is in equilibrium when it remains motionless relative to an observer within the system’s frame of reference: In the diagram above, the system is a 200 N object that is suspended from a pulley. Since the system is not accelerating, we must search for forces thatContinue reading “STATIC EQUILIBRIUM: Concurrent Force Systems”
Tag Archives: static equilibrium
STATIC EQUILIBRIUM: Concurrent Force Systems
Q1: A 200 N force ( F ) is used to stabilize a system of pulleys within an industry’s weighing station. The system’s weighing receptacle is filled with a quantity of liquid that results in 150 N of force exerted in the vertical direction. If the pulley to the right is at a 20o angleContinue reading “STATIC EQUILIBRIUM: Concurrent Force Systems”
FORCE AND ACCELERATION: What is the mass of the climbing acrobat?
Q: Two acrobats, a pulley, and a rope are used in a circus act. Acrobat 1 rapidly climbs one of the suspended lengths of rope at a distance of 16ft in 2 seconds with a constant acceleration. On the opposite length of rope, acrobat 2 is suspended in an attached chair that remains motionless aboveContinue reading “FORCE AND ACCELERATION: What is the mass of the climbing acrobat?”
FORCE AND ACCELERATION: The Sum of all Torques Must Equal Zero
When a system is in static equilibrium, the sum of the forces acting upon the system must equal zero. In the diagram below, forces F1 and F2 exert torques upon the system: Recall that a torque ( 𝛕 = Fr sin θ ) has the ability to make a system rotate, and it is theContinue reading “FORCE AND ACCELERATION: The Sum of all Torques Must Equal Zero”
FORCE AND ACCELERATION: Systems of Torque and the Center of Mass
Thus far, physicists have not developed a concise definition of what constitutes mass and “ free space “. As a consequence, an overly simplistic definition of mass, albeit imperfect, may be used with convenience in laboratory settings. Mass, simply put, occupies free space. Relatively simple analyses of forces acting upon massive objects can be madeContinue reading “FORCE AND ACCELERATION: Systems of Torque and the Center of Mass”
RENAISSANCE PHYSICS 