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1. Create a Cannon and Cannon Ball Sprite 2. Create a Bullseye Target 3. Aim the Cannon with the Mouse Pointer 4. Setup the Cannon Ball Launch Controls 5. Group Challenge on Edge Conditions 6. Create Variables for Gravity and Velocity 7. Aim the Cannon Ball and Set the Initial Gravity and Speed 8. Group Challange: Physics 9. Attempt the first Physics Plan 10. Update Gravity and Velocity while the Cannon Ball is in the Air. 11. (Optional) Moving Target 12. (Optional) Score

Project 95: Cannon Physics

10. Update Gravity and Velocity while the Cannon Ball is in the Air.

Remember that gravity is always pulling on objects thrown or launched into the air, and the longer an object is in the air the faster it will approach the ground. Likewise Velocity will should decrease while it's in the air. Try using conditions and "change variable by ___" in the variables tab to slowly lower both Velocity and Gravity.
Starting point file for this challenge

Your goal

Hint: show steps

Steps

1. Grab two If Then Statements with a Greater Than operator

Let's grab two "If ___ then ____" blocks from control and connect them on top of each other and to the side of the main Forever Loop.  Now add a "greater than ___" block to each of them.  

2. Add Each of our Variables to the conditions

Let's add each of our variables from the Variable Tab to the Left hand side of the "greater than ___ " blocks in our If statements.  Each of these statements works for either Velocity or Gravity.

3. Changing our Variables Mid Launch

Now we will grab two "change ___ by 1" blocks and put them into our If statements.  Make sure to change them to correct variable and change "1" to "-0.1"!

4. Add our Variable Code to the Launch

Let's move these If statements inside of the Repeat until Loop to fix the Cannon Balls' physics.  Make sure you grab from the top of the first If statement and place them right below the "change y by gravity"  block.