Angle of Football Kickoff

Homework Statement

Two footballs, A and B, are kicked from level ground with identical initial speeds, but with θA greater than θB.
Which football reaches a higher elevation?
Which football travels farther?
Which football stays in the air longer, i.e., has the greater hang time?
Which football has the greater horizontal component of velocity?

Homework Equations

vx0=v0cos(angle)
vy0=v0sin (angle)
t=vy0/g
y=((vy0^2)-vy^2)/g
x=vx0*t

The Attempt at a Solution

I thought the answers were Football A, Football B, Football A, and then Football B, but these were wrong. I did a plug-in for this problem and I used 60 degrees for Angle A and 50 for Angle B with an initial velocity of 20 m/s. When I did all of the calculations out, I got the results I said above.

PhanthomJay
Homework Helper
Gold Member

Homework Statement

Two footballs, A and B, are kicked from level ground with identical initial speeds, but with θA greater than θB. Which football travels farther?

I thought the answer ( was).. Football B, I used 60 degrees for Angle A and 50 for Angle B with an initial velocity of 20 m/s. When I did all of the calculations out, I got the results I said above.
Try using Angle A =45 degrees and Angle B =0 degrees. Which one travels farther? The question is missing information.

There is an option that says "depends on the angle."

PhanthomJay
Homework Helper
Gold Member
I like that option

so since every equation above contains a vy0 or vxo, that would means that each answer is dependent on the angle?

PhanthomJay