===== Example: Box moving down a Ramp =====



=== Video ====
Part 1: A 25 kg box sits on a 20 degree incline ramp.

a) Calculate the parallel and perpendicular components of gravitational force acting on the box.
{{youtube>_3TOlRGsTTo?large}}


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Part 2:

b) Starting with the simpler diagram, draw vectors representing all of the forces acting on the box.
{{youtube>3WTduUNw7Ag?large}}


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Part 3:

c) The ramp has a 5 m height. If the box starts from the top at rest, what is its final velocity at the bottom after sliding down?
{{youtube>cIbU01QPmGg?large}}



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For a more in-depth explanation of the Kinematic equations, feel free to view the [[183_notes:examples:videoswk3|video examples]] under week 3.
=== Four Quadrants ===


{{183_notes:examples:fgrav_components_quadrant.png}}