Question

A hill that has a 31.4 % grade is one that rises 31.4 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?

Answer 1

(1) draw a right triangle.
(2) base = 100.0 m
(3) height = 31.4 m
(4) determine the angle (theta) between the base and the hypothenuse of the triangle.

Use tan theta = opposite side/adjacent side. don't forget to inverse tan.

Answer 2

How do you find the net force and its direction of the diagrams

Answer 3

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