Two movers are attempting to push a couch of a ramp one mover applies a force of 80 N to the right but the force of friction between the couch and the ramp is providing a force of 110 N in the opposite direction and the couch slides down the ramp

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 month ago

In this scenario, we have two forces acting on the couch:

1. **Applied Force**: One mover is applying a force of 80 N to the right.
2. **Frictional Force**: The force of friction between the couch and the ramp is 110 N acting to the left.

To analyze the situation, we can calculate the net force acting on the couch. The net force (\( F_{\text{net}} \)) can be found by subtracting the frictional force from the applied force:

\[
F_{\text{net}} = F_{\text{applied}} - F_{\text{friction}}
\]
Substituting the values:
\[
F_{\text{net}} = 80 \, \text{N} - 110 \, \text{N} = -30 \, \text{N}
\]

The negative sign indicates that the net force is acting to the left, which is the direction of the frictional force. This means that even though the mover is applying a force to push the couch to the right, the frictional force is greater, resulting in the couch not moving in the direction of the applied force.

Since the net force is negative and directed to the left, the couch will not only remain stationary but will actually slide down the ramp if the ramp is inclined downward. If the scenario specifies that the couch slides down the ramp, that suggests the ramp's incline provides additional forces in the direction of sliding that may not be considered here, such as gravitational forces acting along the incline.

In conclusion, the applied force of 80 N is not sufficient to overcome the frictional force of 110 N, thus resulting in a net force of -30 N to the left, indicating that the friction is strong enough to prevent the couch from moving in the direction that the mover is pushing. If the situation states that the couch is moving down the ramp, other forces (like gravity acting on the incline) must also be accounted for in the complete analysis.