# Physics(Please answer, thank you)

posted by
**Hannah**
.

How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values.

Physics - drwls, Saturday, September 15, 2012 at 1:29am

Define your terms.

I have no idea what you are talking about

For an experiment on projectile motion using a ball, we were given values of vo(initial speed m/s), t(flight time in seconds), and the real distance X in meters from a computer. We launched the ball from three different angles, 0, 30 and 45 degrees. All of these angles were launched at a height of 1.005 m (yo value).

Then we had to use our measured values of Q, vo to determine the ymax for a figure shown in the lab book. The figure just shows the two equations along with the symbols for each and what they mean so I am not sure how to calculate the ymax for each angle

Using the equations

y=y0 + (vo sin Q)t - 1/2gt^2 and

x = vo cos Q X t

we had to calculate x and then t and compare each to are measured values