Question

you are unloading a refrigerator from a delivery van. the ramp on the van is 5.0 m long, and its top end is 1.4 m above the ground. as the refrigerator moves down the ramp, you are on the down side of the ramp trying to slow the motion by pushing horizontally against the refrigerator with a force of 350 n . part a how much work do you do on the refrigerator during its trip down the ramp? express your answer with the appropriate units.

Answer 1

To calculate the work done by the force of 350 N on the refrigerator, we need to find the component of the force parallel to the ramp. We can use trigonometry to do this. Once we have the horizontal component of the force, we can calculate the work by multiplying it by the distance the refrigerator moves along the ramp.

Step-by-step explanation:

To calculate the work done by the force of 350 N on the refrigerator, we need to find the component of the force parallel to the ramp. We can use trigonometry to do this. The angle of the ramp is determined by its height and length, so we can find the angle using the tangent function.

Once we have the angle, we can find the horizontal component of the force by multiplying the force by the cosine of the angle. Finally, we can calculate the work done by multiplying the horizontal force by the distance the refrigerator moves along the ramp. The work is given by the equation: Work = Force × Distance.

Plugging in the values, we get: Work = (350 N) × (5.0 m) × cos(θ).

Where θ is the angle of the ramp.