We decompose vectors into x and y - _____________
components
What is vy(initial) for a ball that is launched horizontally at 5 m/s off a 10 m high cliff?
0 m/s
Provide any equation rearranged for time
t = d/v
Which initial velocity component is larger if a projectile is launched at an angle of 50o above the horizontal?
y-component
If, at a particular time, you have vx and vy, what math method would you use to solve for v?
Pythagoras
How far will a projectile travel in the horizontal direction if launched horizontally at 3.5 m/s and is in the air for 4 seconds?
14 m
Write the quadratic formula
x = (-b+-sqrt(b2-4ac))/(2a)
A ball is thrown from the ground at 15 m/s at an angle of 20o above the horizontal. What will its velocity be when it hits the ground?
15 m/s at an angle of 20o below the horizontal.
What is the term used to describe how we add vectors by drawing them with the second vector arrow starting where the first one ends?
1.7 s
Which equation is derived from adding the areas of a triangle above a rectangle on a velocity-time graph?
d = ((vi + vf)/2)t
A ball is thrown 20 m/s at an angle of 60o above the horizontal. How far does it travel in the horizontal direction if it's in the air for 18 seconds?
180 m