![]() To the left of the box in the upper right, there is a yellow object and a blue one. ![]() Get the horizontal distance, time of flight, and maximum height. Push the red button to right of the initial speed to launch the projectile. In the box in the upper right change the mass to 1.0 kg. Change the speed to 10 m/s Move the target as far to the right as you can. Use the mouse to raise the height to 1.0 m and rotate the cannon to 250. Scroll down to Projectile Motion and click the play button. Place your mouse over simulations and select Physics from the dropdown menu. Materials and Apparatus Projectile Motion Simulation at IV. ![]() For a projectile launched with an initial speed of V1, at an angle of 81 above the horizontal, the equations describing a = 0 a = -8 Vox = V, cos ao Voy V, sin ao 1 x-Xo = V, cosant y - y = v, sin at v, = V, sina, -gt the motion are: v1 = (v, sin a,)? – 2g(y- y) 2 III. Since gravity is approximately constant near the Earth's surface, the equations for uniformly accelerated motion apply. Equations of Projectile Motion Ignoring air resistance, the only force acting on a projectile is gravity. When the independent vertical and horizontal motions are combined a precise mathematical curve results - a shape that the Greeks had already studied and called the parabola. The downward pull of gravity is always the same - regardless of a projectile's horizontal motion. An object projected horizontally will reach the ground in the same amount time as an object dropped vertically. He understood that vertical motion does not affect horizontal motion in the absence of air resistance. Galileo said that projectile motion could be understood by analyzing the horizontal and vertical components of the flight separately. Galileo realized that projectiles actually follow a curved path. Background and Theory The first theory of projectile motion was based on Aristotle's views of motion and held that a projectile, e.g., a cannon ball, followed a straight line until it "lost its impetus" - at which point it fell abruptly to the ground. time of flight horizontal distance travelled maximum vertical height attained. This will be accomplished by determining the relationship between the launch angle and the following three kinematics variables. Purpose The purpose of this lab is to enhance your understanding of projectile motion. 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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