Answer the following in brief:
Two ramps lead to the same platform. One is short and steep, while the other is long and gentle. Which would require less effort? Explain.
The requires to move the load to the same height. This is because a longer provides a , allowing the force to be applied over a . As the distance over which the effort is applied increases, the amount of force needed to lift the object decreases. Although the object travels a greater distance, the (ignoring friction) because the load is raised to the same height. Thus, a long and gentle ramp makes lifting heavy objects easier without reducing the total work done.