Question

Which of these items is not a wedge?

a. axe
b. knife
c. ramp
d. ice pick user: how can the mechanical advantage of an inclined plane be expressed as a ratio?
a. length / time
b. mass / length2
c. length / height
d. length * height

Answer 1

I'm assuming the ice pick isn't shaped like a wedge.

For question two, I believe it's length/height (or hypotenuse/height)