Recent content by bronteogrady

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?

so using the initial vertical component at the initial velocity in the equation v=u+at?

The vertical component because horizontal does not use the acceleration equations

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...