Vectors
A unit vector has a magnitude of this value.
What is 1?
The initial velocity of a ball dropped from a height of 10 m.
What is 0 m/s?
The only variable that is always the same between the horizontal and vertical components.
What is time?
When subtracting a vector, you do this to its components.
What is flip their sign/multiply by -1?
The direction of an object's acceleration when it is thrown upwards (+y).
What is downwards (-y)?
Acceleration of a projectile in the horizontal direction.
What is 0 m/s2?
The magnitude of a vector with horizontal component 2 and vertical component 4.
What is sqrt(20) = 2*sqrt(5)?
The final velocity of a ball that is thrown upwards (+y) with velocity v, rises to its peak, then falls back to the original height.
What is -v?
One reason why Prof. Tsai hates the range equation.
What is forgetting assumptions, demotivating understanding, not always useable, etc.?
The horizontal component of a vector with a length of 4 angled at 60o above the +x axis.
What is 2?
The speed of a free-falling object 10 seconds after it is dropped.
What is 100 m/s?
The y-component of an object's initial velocity v, launched from an angle of 30o above horizontal.
What is v*sin(30o) = v/2?
The orthogonality of vector components gives us this property concerning the relation between horizontal and vertical motion.
What is independence?
The maximum height obtained by a ball thrown upward at 4 m/s.
What is 0.8 m?
A projectile launched from the ground lands on a platform 3 m tall. Its final speed is [<, >, =] its initial speed.
What is < (less than)?