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How far will a ping pong ball go if you launch it from a catapult that is at a 40 degree angle?
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Why does a catapult shoot best from a 45 degree angle?
The [horizontal] range of a projectile is maximised when it shoots at a 45 degree angle. This is true if air resistance is ignored so that the only force acting on the projectile is gravity.
What is the difference between launch angle and pullback angle?
The difference of these two is that pullback is how far and launch angle is the elevation. I'm not sure but you can check on Science Buddies or just google it .
How does the angle of launch affect the range and trajectory of the projectile?
Easy . Think of it like this. The higher you angle your catapult (or whatever your using.) The higher it will travel but it will have less power. If you have a lower angle you will have more power but it your projectile will hit the ground first. If you don't understand just play around with a slingshot and an empty can of soda. Or you could test it out this theory by playing around with angry birds ;)
What is the best way yo describe an acute angle?
An acute angle is less than 90 degrees.
