![]() 3 m/s *Therefore the initial velocity of the bullet is 31. Determining the Vi of the Bullet: Vi = aav x ? t aav = -9. Time graph, the time represented the corresponding heights of the Horizontal Distance vs Height graph. The graphs were very similar due to the horizontal distance (cm) being constant on the y- axis of the graph. This is because as the height of the toy gun was increased, the horizontal distance increased.Īlso, as the horizontal distance of the bullet increased, so did the time (vice- versa). The graph results definitely support the hypothesis. Time graph- Refer to attached data in the back. Range graph- Refer to attached data in the back. Order custom essay Projectile Motion Lab: Using a Toy GunĪnalysis: Picture of the launcher: Height vs. As the height was increased, the range was also higher. As the height was increased, the more time the bullet took to reach the ground. The gun shot out the bullets at a fairly fast speed. The initial height was the distance from the gun to the surface used. The toy gun was steadily held in my hand. This means that its was curvy because it was first int air, but the gravity pulled it back down to the surface. As the bullet was released, its path was parabolic. ![]() Materials: Toy Gun Fake Bullets Metre Sick Stop Watch General Observations: A metre stick was used to measure the height and the range of the bullet.Ī stop was used to determine the time it took for the bullet to reach the ground. ![]() This is because the bullet's vertical velocity will decrease later as the height is higher up, having a larger time, and therefore a larger range. As the height of the bullet's release increases the the time to reach the ground will increase, and therefore the range of the bullet will increase. This means that is a curvy shape due to the bullet being launched in the air (making curve go up) and the earth's gravity pulling it down (making curve go down). Questions: What is the shape of the actual path travelled by a projectile? How closely does an actual projectile's results follow the theoretical predicted results? Hypothesis: The shape of the path travelled by the projectile, in this case the bullet of the gun, is a parabolic. Explain why it would work this way.Projectile Motion Lab: Using a Toy Gun Purpose: The purpose of this investigation is to measure the vertical displacement, or height of the launch, and the horizontal displacement, or range, travelled by a projectile (bullet from toy gun). ![]() Propose a source of error that could have caused his calculated height to be lower than his measured height. The actual height of his measured object is 2.8m. He calculates the height of his object to be 2.2m. Calculate the height of the object and the launch velocity (speed and angle) of your projectile.Ī student sets up his camera to record the motion of his projectile. Show the calculations for your small scale test and your full scale test. Include the data from your small scale test. Include the quantity measured, the symbol you will use to denote the quantity, and the measurement tool used to take the measurement. Include the procedures needed to determine your percent error.Ĭreate a data table where you will record the measurements from your experiment. Include, also, a description of how the launch velocity of the projectile can be determined.ĭerive an equation that could be used to calculate the launch velocity of the tennis ball with data that can be measured in our laboratory.ĭerive an equation that could be used to calculate the maximum height achieved by the tennis ball during its trajectory.ĭescribe the procedures you used in enough detail that another lab team could follow them and achieve the same results. Purpose: To use the projectile motion of a tennis ball to calculate the height of an object that is too tall to be measured with our metersticks.ĭescribe the physics principle(s) that make it possible for a tall object's height to be calculated from the motion of a bounced tennis ball.
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