The mechanical advantage is 8/2 = 4.
Zero: the ramp cannot be shorter than the height to which it is suppose to reach. I suspect there is a missing decimal point.
5J because 10/2=5
5/20 = 1/4 or 0.25
Since the heights are the same, then the longer ramp.
1/5 = 0.2
Bigger is better no mater what situation. remember don't try this at home :)
The ideal mechanical advantage of the bar is 5.
Zero: the ramp cannot be shorter than the height to which it is suppose to reach. I suspect there is a missing decimal point.
3.3 ft
5J because 10/2=5
6
5/20 = 1/4 or 0.25
204 inches
Since the heights are the same, then the longer ramp.
1/5 = 0.2
a long and fat knife
The height of the Great Pyramid = 139 metres The slope of a ramp with a mechanical advantage of 4 = 4x139 = 556m