Exit Ticket APM 23/24

We do not know the value of time, y (peak height), or x (horizontal displacement). We do know the value of ay (gravity in the vertical direction) . What is ay equal to?

• 45 m/s2

• 9.8 m/s2

• 28 m/s2

• -9.8 m/s2

What is the value of ax (acceleration in the horizontal direction)?

• 0 m/s2

• -9.8m/s2

• 12 m/s2

How is the initial vertical velocity (yvi) calculated for a projectile fired at an angle?

• yvi = vi sin Θ

• yvi = vi cos Θ

• There is no need for calculation if you determine yvi first. Vertical velocity remains constant.

How is the final vertical velocity (yvf) calculated for a projectile launched at an angle?

• It is the same as yvi. You just need to change the sign of the value.

• There is no need for calculation if you determine yvi first. Vertical velocity remains constant.

• yvf = vi sin Θ

• yvf = vi cos Θ

How is the initial horizontal velocity (xvi) calculated for a projectile launched at an angle?

• xvi = vi cos Θ

• xvi = vi sin Θ

• There is no need for calculation if you determine xvi first. Horizontal velocity remains constant.

How is the final horizontal velocity (xvf) calculated for a projectile launched at an angle?

• There is no need for calculation if you determine xvi first. Horizontal velocity remains constant.

• x = vi*t + 0.5*ax*t^2

• xvf = vi sin Θ

• xvf = vi cos Θ