The curl of this physical quantity is given by the vorticity, and a terminal value for this quantity is achieved when the accelerating force on an object is equal to its drag force. The magnetic force on a particle is proportional to the cross product of this quantity and the magnetic field. Kinetic energy is equal to one-half times mass times the magnitude of this quantity squared. Acceleration is the rate of change in this vector quantity, which is the time derivative of position. For 10 point
The curl of this physical quantity is given by the vorticity, and a terminal value for this quantity is achieved when the accelerating force on an object is equal to its drag force. The magnetic force on a particle is proportional to the cross product of this quantity and the magnetic field. Kinetic energy is equal to one-half times mass times the magnitude of this quantity squared. Acceleration is the rate of change in this vector quantity, which is the time derivative of position. For 10 points, name this quantity which describes an objects speed and direction.
The curl of this physical quantity is given by the vorticity, and a terminal value for this quantity is achieved when the accelerating force on an object is equal to its drag force.