A child makes a ramp to push his toy dump truck up to his sandbox. If he uses 5 newtons of force to push the 12-newton truck up the ramp, what is the mechanical advantage of his ramp?
MA = Output Force/Input Force
a
2.4
b
60
c
17
d
0.4
MA = Output Force/Input Force
Output Force = Weight of the truck = 12 N
Input Force = Force applied by the child = 5 N
MA = 12 N/5 N = 2.4
Therefore, the mechanical advantage of the ramp is 2.4.
The answer is (a) 2.4.