Year 12 Mechanics Projectile Motion Experiment 2:

Projectile motion exp 1	Projectile motion exp 2	Projectile motion exp 3
Find muzzle velocity by firing vertically	Find the muzzle velocity by shooting horizontally - determine time of flight - determine muzzle velocity	Find the position the projectile will land, by firing at an angle to the horizontal - resolve x and y components of velocity - determine time of flight - determine horizontal distance.

Purpose:

The purpose of this experiment is to calculate the initial velocity (muzzle velocity) of the ball by firing the cannon horizontally.

NOTE: it is recommended that you do experiment 1 first (as their are less calculations)

Equipment:

Projectile launcher (ME-6801)
Stopwatch
1m rulers
Bench
clamp (can be useful)
photo gates (use only for verification as they take a lot of the learning away)

Method:

In this case, shooting the ball horizontally is the same as dropping the ball, in terms of the time to hit the ground (see Simultaneous fall demo), so vy =0ms^-1