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This system has a pivot and a weight ("bob") at the end of a rigid, massless rod of 1 meter length.
The green vector is tangential linear velocity. The blue vectors are components of
acceleration. The dotted blue vector is the constant gravitational acceleration.
Friction at the pivot is proportional to velocity. The simulation runs in slow motion.
Click the Run button to start. Hit the enter key or click out of field after changing inputs.
simulation time (s):
initial tangential velocity (m/s):
start angle (-180° to 180°):
friction factor (dimensionless):