Forces
This is Newton's first law of motion
What is "An object in motion stays in motion and an object at rest stays at rest"?
This is a physical property of an object that friction does not depend on (Hint: think geometry)
What is surface area?
This is the resulting Net Force from a 4N Northwestern Force and a 4N Southeastern force
What is 0?
These are the two motions that we associate with how forces act on objects
What is Push and Pull
This is why the Coefficient of Static Friction is always larger or equal to the Coefficient of Kinetic Friction
What is we are unable to find the coefficient of static friction until we experiment?
These are the two most often used trig functions to relate angled components to horizontal and vertical sides
What are cosine and sine?
What is mass times acceleration?
This is the direction friction is acting on your shoe when you try to walk.
What is forwards?
This is the direction a 5kg block would move under a tension force of 40N at 35 degrees with a coefficient of static friction of 2
This is what the net force represents
What is the sum of all forces?
This is the value of the coefficient of static friction to stop a 3kg block from sliding down a 20 degree hill
What is 0.37?
This is the acceleration a 4kg block would experience under a tension force of 80N at 35 degrees with a coefficient of static friction of 2.
What is 18.79m/s^2
With two different objects weighing 1kg and 10kg the acceleration from 5N on each would be this
What is 5m/s^2 and 0.5m/s^2?
This is what the coefficient of static friction has to be to stop a 5kg block being pulled at 4N at 30 degrees from moving
What is 0.7?
This is the angle where a 5kg block being pulled with 30N with a static friction coefficient of 0.7 stops accelerating
What is 55.5 degrees?