Projectile motion lab6/19/2023 ![]() However, the presence of gravity does not affect the horizontal motion of the projectile. The cannonball falls the same amount of distance as it did when it was merely dropped from rest (refer to diagram below). Furthermore, the force of gravity will act upon the cannonball to cause the same vertical motion as before - a downward acceleration. If our thought experiment continues and we project the cannonball horizontally in the presence of gravity, then the cannonball would maintain the same horizontal motion as before - a constant horizontal velocity. This is consistent with our conception of free-falling objects accelerating at a rate known as the acceleration of gravity. And furthermore, if merely dropped from rest in the presence of gravity, the cannonball would accelerate downward, gaining speed at a rate of 9.8 m/s every second. This is consistent with the law of inertia. In the absence of gravity, the cannonball would continue its horizontal motion at a constant velocity. Consider a cannonball projected horizontally by a cannon from the top of a very high cliff. Let's return to our thought experiment from earlier in this lesson. The goal of this part of the lesson is to discuss the horizontal and vertical components of a projectile's motion specific attention will be given to the presence/absence of forces, accelerations, and velocity. ![]() And since perpendicular components of motion are independent of each other, these two components of motion can (and must) be discussed separately. There are the two components of the projectile's motion - horizontal and vertical motion. That is, as they move upward or downward they are also moving horizontally. ![]() Many projectiles not only undergo a vertical motion, but also undergo a horizontal motion. _13 _ m/sanday-velocity comporient of _ 7.5 _ m/s.As discussed earlier in this lesson, a projectile is an object upon which the only force acting is gravity. of 15 m/s would | have an x- velocity component of So, the projectile would fire as far as one fred horizontally at 8.5 m/s and as high as one firedĪ projectile fired at 30 degrees with a velocity. The projectile would have a y-velocity of |v, = 20sin 65] or 18 m/s. So, a projectile fired at 20 m/s at 65° has an x-velocity of |v, = 20 cos 65] or 8.5 m/s. Magnitude of the velocity by the sine of the angle, 0. “* Similarity, the y-component of velocity is found by multiplying the The velocity by the cosine of the angle, 0. ![]() The x-component (v,) is found by multiplying the magnitude of Attempt to hit the target with three different angles by changingĪ projectile’s velocity (v) has an x-component (v,) and a y-component «Measure the distance from the cannon to the target using the tape measure.Į Move the target to 21.0 m from the cannon. ° Set the initial speed to a value between 10-15 m/s. ¢ The cannon can be moved to add or remove initial Y position and X position.Į The cannon can be pivoted to change the firing angle, 9.Į The tape measure can be moved and dragged to measure range to target.īe sure air resistance is off and spend some time firing various projectiles. That while gravity (acceleration) acts on the projectile in the verttea\ direction, itĭoes not affect the velocity of the projectile in the _\ovizwwtal direction. In this:module, you will investigate the motion of a simple projectile: Realize In the Y direction is independent of the acceleration (if any) and velocity in the Xĭirection. Projectiles travel with two components of motion, X any Y. Download Projectile Motion Lab Answers and more Physics Lab Reports in PDF only on Docsity!Physics: Projectile Motion (Intro) PhET Simulations Lab Name: KEY Per.
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