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)

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

Pitfalls / causes of error

The cannon MUST be perfectly horizontal (use plumb bob to check)

Generally very accurate (This can also be verified using photo gates)

Resources

PowerPoint by James Harris - still a work in motion

## Year

12 MechanicsProjectile Motion Experiment 2:- determine time of flight

- determine muzzle velocity

- resolve x and y components of velocity

- determine time of flight

- determine horizontal distance.

## Purpose:

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

## Equipment:

## 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

## Pitfalls / causes of error

## Resources

## Model data:

## References / other comments: