Question

a student is pushing on a heavy door, trying to slide it open. their friend stands behind them and helps push. how have the forces changed?
o the net force applied will increase.
o the applied force does not change.
o the net force will decrease.
o there will be less friction.

Explanation:

The initial force is from the student. When the friend helps push, an additional force is added in the same direction. Net force is the sum of all forces acting on an object. So, the net force increases.

Answer:

The net force applied will increase.