A 3.75 kg box is traveling at 8.5 m/s just before it hits a pillow. It takes 1.2 s for the box to stop. What is the force of impact provided by the pillow? A) 2.7 N
B) 31.9 N
C)0.53N
D)26.6

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

conservation of mass

mass before something happens = mass afterwards