A school bus has a mass of 18,200 kg k g . The bus moves at 15.5 m/s m / s .

Gravity, from the center of mass of the box, extending downward normal force, from the floor under the box, extending upward, equal to gravity push force, acting at a point on the box, extending in the direction of motion friction, acting at any point on the box directly opposite the push, extending directly opposite to the motion

Anton because carbon dioxide and water are used with light energy to produce glucose sugar and oxygen gas.