![]() ![]() Changes in velocity will affect the range. Furthermore, the initial velocity of the ball could have been slightly different than the initial velocity of the ball when it hit the paper. Also, the average velocity was used to predict the range. For example, the tape measure used only measured up to the tenths decimal of centimeters forcing us to estimate the decimals when measuring the height the ball was launched from. Another error includes inconsistent values for height, predicted range, and actual range due to errors in measurement caused by parallax. Some errors include not properly placing the paper precisely where the range was predicted. The actual range was 0.08 meters larger with a percent difference of 3.45%. The predicted range was 2.35 m, but the average range was 2.43 meters. The Horizontal distance The Maximum Height.During this experiment, the uncertainty in range was 6.5 cm with a percent uncertainty of approximately 0.02%.Angle Time of Flight (s) Horizontal Distance (m) Maximum Height (m) As the launch angle increases what happens to the following?Īs the launch angle increases what happens to the following? Time of flight? The max height is the green dot on the trajectory. Make sure the height is zero in the data. Move the cross hairs to the landing point. This will give the horizontal distance, max height. Click on the blue one and drag it into the simulation. 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. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |