Jake uses a fire extinguisher to put out a small fire. When he squeezes the handle, the flame retardant is released from the extinguisher with considerable force. As a result, Jake has to reinforce his grip on the extinguisher to hold it in place as it pushes back into his hands.
The projectile in this scenario is the .:flame retardant
The recoil in this scenario is the .:extinguisher
The force on the flame retardant is the force on the extinguisher.:equal to
The mass of the flame retardant is the mass of the extinguisher.:less than
The acceleration of the flame retardant is the acceleration of the extinguisher.:greater than