(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 69.0° above the horizontal and was caught at the same level from which it was kicked, what was its initial speed? (Neglect air resistance.)

2. Relevant equations

All Kinematics Equations

3. The attempt at a solution

Acceleration (y) = -9.81 m/s^2

Acceleration (x) = 0 m/s^2

Time = 3.5 s

Vi,x = (Vi)cos69

Vi,y = (Vi)sin69

Now I don't think I have enough information to solve the problem, but I know the problem isn't written incorrectly. I don't know where to go with the information I have because I can't solve for anything.

Help please? Thanks in advance.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# 2D Kinematics - Finding Initial Velocity

**Physics Forums | Science Articles, Homework Help, Discussion**