arman uses the ramp to help his friend on a wheelchair to move up the building. A ramp is an example of what simple machine
Answer:
A ramp is an example of a simple machine known as an inclined plane. It is a flat, sloping surface that allows objects or individuals to move up or down with less force compared to lifting them straight up. In the case of Arman helping his friend on a wheelchair, the ramp reduces the effort required to move the wheelchair vertically by spreading it out over a longer distance along the sloping surface of the ramp.