Question

A man is pushing a heavy crate up an inclined plane into the back of semi trailer.What can the man do to make it easier to get the crate up the ramp

Answer 1

B) Make the ramp longer

Step-by-step explanation:

A machine is a device that makes work more easier and faster. A machine also saves time.

A ramp is a simple machine that is used to lift heavy object with a force that is lesser than the actually force needed. A ramp is in the shape of an inclined plane, which makes pushing an object easier than the required force needed.

The formula for a ramp is given by:

Force needed to push * length of the ramp = weight of object * height of ramp.

Force needed to push = (weight of object * height of ramp) / length of ramp

We can see that the force needed is inversely proportional to the ramp length. Hence for a ramp with longer length you need lesser force to raise the object.