Question

A quarterback throws a football with an initial velocity v at an angle θ above horizontal. Assume the ball leaves the quarterback’s hand at ground level and moves without air resistance. All portions of this problem will produce algebraic expressions in terms of v, θ, and g. Let the origin of the Cartesian coordinate system be the ballʼs initial position.

Write an expression for the magnitude of the football's initial vertical velocity Voy?
Find an expression for the magnitude of the football's initial horizontal Vox.
Write an expression for the total time, t, total the football is above the ground.

Answer 1

Do you think you can put a picture, because it be a parabola by chance or maybe some trig. But I may be wrong, because of the theta sign.

So you know that x=0 won't count, so ignore that (because the quaterback is holding it). Once it reaches the ground it's finished.

It's going to be an equation. I'm not sure, but the answer might be written with inequalities.

Answer 2

that's a copy of the image given

Answer 3

hmmm
okay, so I dont know about those variables, but I would just make an inequality- are they looking for a value?

Answer 4

If not inequality a quadratic equation for a parabola

Answer 5

no its asking to write an expression of the magnitude of the footballs initial vertical velocity

Answer 6

okay I guess you have to use the velocity equation:

v= d/t

but are they asking for lamda? (the wave sign that looks like a y)?

Answer 7

This seems to be more like physics to me

Answer 8

it is lol

Answer 9

but thank you for your help

Answer 10

you might put this in the physics section xD I don't remember my physics formulas, but good luck ;p