A 1.0 kg rock is dropped from a cliff 90 meters high. After falling 20 meters, what is the velocity of the rock?

Asap (explain how you got it as well for brainliest)i tried 1: 2 and 2: 3 and they were wrong.picture of figure: in the figure below, the segment is parallel to one side of the triangle. the ratio of 12 to y is1: 21: 31: 42: 3

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which statement justifies why angle ebc measures 90?