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By: Zach Pancratz, Tony Janke, Jeff By: Zach Pancratz, Tony Janke, Jeff Giesel and Nikki InfusinoGiesel and Nikki Infusino
A projectile is an object upon which A projectile is an object upon which
the only force acting is gravity.the only force acting is gravity.
Projectiles can be thrown from all Projectiles can be thrown from all different directionsdifferent directions
A projectile continues its motion by A projectile continues its motion by its own inertia and the downward its own inertia and the downward force of gravityforce of gravity
Projectiles go along with Newton’s Projectiles go along with Newton’s First Law and his Laws of Motion First Law and his Laws of Motion saying an object will keep on doing saying an object will keep on doing what they are doing unless an what they are doing unless an outside force acts upon it.outside force acts upon it.
without gravity the object will stay without gravity the object will stay in the same motion with the same in the same motion with the same speed.speed.
For example, a projectile that is For example, a projectile that is moving upwards has a downwards moving upwards has a downwards force acting on it and a downwards force acting on it and a downwards acceleration slowing it down.acceleration slowing it down.
With the absence of forces, the With the absence of forces, the object will stay in motion and go in object will stay in motion and go in a straight line.a straight line.
Without gravity, the wheel will stay in motion and maintain its
speed in the samedirection
Problems Equations Definitions
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Equation 300 pts.Equation 300 pts.Q. Vf = ?
A. Vi + acceleration x time
a = vf – vi / t
Definition 100 pts.Definition 100 pts.
Q. What is the definition of Velocity?
A. The distance covered over a certain period of time
Definition 200 pts.Definition 200 pts.
Q. What is the definition of a projectile?
A. Object that the only force acting on it is gravity.
ProjectileMotion
Definition 300 pts.Definition 300 pts.
Q. What two kinds of motion can a projectile have and what are they?
A. Horizontal and Vertical MotionH- How fast the object moves forwardor backwardV- How fast the object moves upwardor downward
x
yProjectile
Equations 200 pts.Equations 200 pts.
Q. 2ad = ?
A. 2ad = Vf^2 – Vi^2
Equations 100 pts.Equations 100 pts. Q. D equals what?
A. d = Vit + 1/2at^2
Problems 300 pts.Problems 300 pts.
Q. A bullet is shot at a target 50 meters away and it dropped .5 meters by the time it reaches the target, how long does it take to drop?
A. Time = .319 sec
Problems 200 pts.Problems 200 pts.Q. A ball is launched at a 30 degree angle with an a initial speed of 8 m/s, how much upwards velocity does the ball have?
A. 4 m/s
Problems 100 pts.Problems 100 pts.
Q. You drop a ball from a 5 meter ledge how long does in take to hit the ground?
A. Time = 1.01 sec
