Pablo rode a skateboard up a ramp for a distance of 3.8 m. if the ideal mechanical advantage of the ramp is 2, how far above the ground was pablo?

The answer is 1.9 m

The ideal mechanical advantage (IMA) is the ratio of input distance (ID) to output distance (OD):
IMA = ID/OD
IMA = 2
ID = ramp length = 3.8 m
OD = height = ?

2 = 3.8m/OD
OD = 3.8/2
OD = 1.9 m

The answer is b hope this