Thankyou! Now I have it is seems easy! just wondering, why is the 9.8 ms-2 negative? is is because when it is moving up it is going in the opposite direction? If so does this mean that when is is moving downwards the 9.8ms-2 would be positive?
I thought about using the acceleration equations though I have not used these before with a degrees in the mix and was unsure if I needed to include this.
Homework Statement
A physics class researching projectile motion constructs
a device that can launch a cricket ball. The launching
device is designed so that the ball can be launched at
ground level with an initial velocity of 28.0 m s–1 at an
angle of 30.0 degrees to the horizontal.
Homework...