Answer:
You push a 20.0 kg crate at constant velocity up a ramp inclined at an angle of θ.
Explanation:
When pushing a crate at a constant velocity up a ramp, several forces are at play. The force you apply is directed up the ramp, counteracting the force of gravity pulling the crate downward along the incline. Achieving constant velocity indicates that the forces are balanced, and there is no net acceleration. The angle of the ramp, denoted as θ, is crucial in determining the balance of these forces.
The force you exert can be resolved into components parallel and perpendicular to the ramp. The component parallel to the ramp is responsible for countering the gravitational force pulling the crate down the incline. The angle θ is vital in calculating this component and ensuring equilibrium in the system.