Initial velocity magnitude in projectile motion

[jahaddow]

Hi, I need to calculate the magnitude of the initial velocity of the following data for projectile motion. Any help would be greatly appreciated as I have no idea where to start! Thanks

please see the question here:
http://i52.tinypic.com/15p0kza.png

and the data here:
http://i52.tinypic.com/2uj7d53.png

Thanks so much in advance!

 

[PeterO]

Hi, I need to calculate the magnitude of the initial velocity of the following data for projectile motion. Any help would be greatly appreciated as I have no idea where to start! Thanks

please see the question here:
http://i52.tinypic.com/15p0kza.png

and the data here:
http://i52.tinypic.com/2uj7d53.png

Thanks so much in advance!

If you know the vertical (y-component) and horizontal(x-component) of the initial velocity, you should be able to calculate the Initial velocity [using Pythagorus and trig].

From the data supplied, the time intervals are 0.03 seconds - which is really quite small.
To calculate the average velocity for the first time interval would be a pretty good approximation for the initial velocity.