A student (m=70kg) is pushing a heavy package(m=90kg) along a level floor with horizontal force of 800N. The student and package are accelerating towards right.

1.Is the force by the package on the student greater than 800N, equal to 800N, or less than 800N? Briefly explain.

2.There a downward force and an upward force exerting on the package. Is the upward force the reaction force (3rdlaw partner) of the downward force? Answer YES or NO and explain. If NO, what will be the reaction force of these two forces?

3.Which object has smallernet force, the student, or the package? Briefly explain