A mover load a box into the back of a moving truck by pushing it up a ramp. The ramp is 4.0 m long and the back of the truck is 1.5 m high. What is the mechanical advantage of the ramp?
Mechanical Advantage = length of the ramp/height of the ramp
a. 0.4
b. 5.5
c. 2.7
d. 6
The mechanical advantage of the ramp is defined as the ratio of the length of the ramp to the height of the ramp. In this case, the length of the ramp is 4.0 m and the height of the ramp is 1.5 m. Thus, the mechanical advantage is:
Mechanical Advantage = length of the ramp / height of the ramp = 4.0 m / 1.5 m = 2.67m.
Rounding to one decimal place, the mechanical advantage of the ramp is approximately 2.7.
Therefore, the correct answer is c. 2.7.