Question

an inclined plane of angle 15 degrees is used to raise a load of 4500N through a height of 2m if the plane is 75% efficiency calculate velocity ratio of the plane

Answer 1

The velocity ratio of the inclined plane is 0.75.

Step-by-step explanation:

The velocity ratio of the inclined plane can be calculated using the formula:

Velocity Ratio = (load/effort) = (load/ideal load)

Here, the load is 4500N and the ideal load is the load that would be required to raise the load through the same height if the plane had 100% efficiency.

Given that the plane has 75% efficiency, the ideal load can be calculated as follows:

Ideal Load = load/efficiency = 4500N/0.75 = 6000N

Therefore, the velocity ratio of the inclined plane is:

Velocity Ratio = (4500N/6000N) = 0.75