Question

1. you push on a desk, but it doesnt move. are forces acting? explain.

Explanation:

According to Newton's first law, an object at rest remains at rest unless acted upon by an unbalanced force. When you push on the desk, there are forces acting. The force you apply is one force. There is also a frictional force acting in the opposite direction. Since the desk doesn't move, these forces are balanced (equal in magnitude and opposite in direction). Additionally, the desk has a gravitational force acting downward (its weight) and a normal force from the floor acting upward. These are also balanced.

Answer:

Yes, forces are acting. There is the force you apply, a frictional force opposing it (balanced), a gravitational force (weight) downward, and a normal force upward (balanced).