Projectile motion Definition and 1000 Threads

Homework Statement A projectile is fired with speed v0 at an angle θ from the horizontal as shown in the figure (see attachment). Homework Equations A. Find the highest point in the trajectory, H. Express the highest point in terms of the magnitude of the acceleration due to gravity g, the...

Homework Statement Baseball is hit at 60.0m/s at an angle of 30 degrees to the horizontal. Assuming the field is level find: Time ball was in air How long it was in the air How far did it go Given Assume up is +ve Calculated data within brackets Horizontal v=(52m/s) d= t= Vertical...

I'm going to head towards an electrical engineering path. At this stage, I'm just taking physics 1 w/ calculus. Just wondering, how does chapter 2 and 3, constant acceleration and projectile motion problems, relate to later electrical engineering concepts? I find these acceleration...

Hi, I am in need for some physics help regarding the effect of air resistance on projectile motion. My question is "For a tennis ball stuck at an angle of 45 degrees to the horizontal at typical speed without spin, why does air resistance have a greater effect on the horizontal range of the...

Homework Statement So, our lab entails the students launching a projectile at a certain angle into a cup at a certain distance away. The launcher is 37 cm off of the ground and the cup is 7cm of the ground, so the Dy = 37-7 = 30cm. We will be given the angle in class and will be asked to...

Homework Statement Dr. Evil runs out to his car which is parked at the bottom of a hill that is inclined with the horizontal at 20(degrees) and blasts up the hill at an acceleration of 6 m/s2. James Bond runs out behind Dr. Evil to a mortar that is located conveniently exactly where Dr...

Homework Statement a golf ball is shot from a height of 6.5 ft above the ground at an angle of 45° above the horizontal. The ball lands 39 ft and 3 inches downfield. Assuming ideal projectile motion find: a. Initial velocity b. flight time c. maximum height Homework Equations r =...

I'm currently working on a project for projectile motion and my teacher wants to see us launch a round ball about marble(maybe smaller) sized into a ring clamp on a retort stand somewhere around the room. She suggest we all use "gravity" (a simple ramp that let's a ball slide down and shoot up)...

Homework Statement An airplane with a speed of 45.2 m/s is climbing upward at an angle of 40° with respect to the horizontal. When the plane's altitude is 540 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point of...

What am I doing wrong in this basic Projectile Motion Problem?? What I did in was use Delta X = Vxi + axt^2 & Delta Y= Vxi + ayt^2 then I plugged in the information but acceleration for x was 0m/s^2 and acceleration for y was -9.80m/s^2. (ATTACHED AS FILE)

Homework Statement Using these two equations of (1) Dx=(Vox)t and (2) Dy= -(1/2)gt^2 I have to find an expression of Dy as a function of Dx Vox = initial component of velocity at time =0 Dx = Distance traveled horizontally Dy= Distance traveled vertically upward Homework Equations...

Homework Statement 7. During World War I, the German army bombarded Paris with a huge gun referred to, by the Allied Forces, as “Big Bertha.” Assume that Big Bertha fired shells with an initial velocity of 1.1 x 10^3 m/s [45° above the horizontal]. (a) How long was each shell...

Homework Statement A golfer hits a shot to a green that is elevated 3.00 m above the point where the ball is struck. The ball leaves the club at a speed of 14.0 m/s at an angle of 40 degrees above the horizontal. It rises to it's maximum height and then falls down to the green. Ignoring air...

Homework Statement A ball is shot from a cannon on a hill that is 1.93m high and lands 17.34m away after 1/586s. What was the initial velociy of the ball? I would really appreciate if you can provide explanation as well! Thanks!

Homework Statement A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown. The ball's position is shown at 1.00 s intervals until t=3.00 s. At t=1.00 s, the ball's velocity is v=(2.73i+1.78j) m/s. Determine the ball's velocity at t=0.00 s. (Enter your...

Homework Statement A hiker throws a stone from the upper edge of a vertical cliff. The stone ' s initial velocity is 25.0 m/s directed at 40.0 degrees with the face of the cliff, as shown in Fig. 3.1. The stone hits the ground 3.75 s after being thrown and feels no appreciable air resistance...

Homework Statement A bullet is shot straight up into the air. It reaches a maximum height at h = 612 m. Find an expression for the initial speed of the ball. Using your previous results find a numeric time for the total flight time, t until the ball reaches the ground. Homework...

Homework Statement A boy attempts to throw a ball over the roof of a barn 11m high with an initial velocity of vsub0=12m/s. Determine the angle theta, at which the ball must be thrown so that it reaches its maximum height, which is at the roof of the barn. also find x where the boy must stand...

Homework Statement Two bullets are shot with different velocity from the same gun placed parallel to an inclined plane. Which one will strike the plane first? 1. the faster 2. the slower 3. neither, both strike the plane at the same time Homework Equations Kinematics equations... The Attempt...

Homework Statement A daredevil is shot out of a cannon at 33.7◦ to the horizontal with an initial speed of 25.5 m/s. A net is positioned at a horizontal distance of 43.7 m from the cannon from which the daredevil is shot. The acceleration of gravity is 9.81 m/s^2 At what height above the...

Homework Statement A projectile returns to its original height after 4.08 seconds, during which time it travels 76.2 meters horizontally. If air resistance can be neglected, what was the projectile's initial speed? (Use g = 9.80 .) Homework Equations The Attempt at a Solution...

Homework Statement A ball of mass 0.5 kg rolls off a table 4 metres above the ground with a speed of 4 ms^-1. a) what is the kinetic energy of the ball when it strikes the ground. b) what is the kinetic energy of the ball just before it strikes the ground c) what is the speed of the...

Homework Statement Romeo is chucking pebbles gently up to Juliet's window and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 8.0 m below her window and 9.0 m from the base of the wall. How fast are the pebbles...

Homework Statement A fox fleeing from a hunter encounters a 0.730 m tall fence and attempts to jump it. The fox jumps with an initial velocity of 7.10 m/s at an angle of 45.0°, beginning the jump 2.11 m from the fence. By how much does the fox clear the fence? Treat the fox as a particle.

I'm not looking for someone to work this one out for me, and I know I have done this type of problem in entry level physics, but it's popped up again in dynamics, and physics is mostly a blur these days. Given the muzzle velocity and impact coordinates of a rifle, find the angles of elevation...

Homework Statement A skier leaves the ramp of a ski jump with a velocity of v = 13.0 m/s, θ = 15.0° above the horizontal, as shown in the figure. The slope where she will land is inclined downward at = 50.0°, and air resistance is negligible. Homework Equations The Attempt at a...

Hello, I have a confusing problem here that I've spent a long time on today and can't seem to understand. I've found this on contextual problem websites so it's possible that one of you may have seen it before. Also, ignore the graph I attached, I messed it up but it might give you an idea of...

Homework Statement During the opening kickoff of a college football game, the kicker kicks a football with an initial velocity of 27.5m/s at an angle of 41 degrees above horizontal. What is the flight time for the ball? What is the maximum height How far does it travel before hitting the...

Homework Statement Standing on the ground 3.5 m from the wall of a building, you want to throw a package from your 1.6 m shoulder level to someone in a second-floor window 4.5 m above the ground. At what speed should you throw the package so it just barely reaches the window? At what angle...

I missed a few days of class and have a quiz tomorrow so I'm not entirely sure where to start with this. The question is: A golfer hits a ball (m = 38 g) from a cliff top (h = 46 m) and times how long it takes to splash in the ocean (t = 7.0 s). The ball hits the water at a distance (x = 154...

Homework Statement A koala throws a eucalyptus branch. It goes 1.5 meters. If it left at 43 degrees, what velocity did the branch have when it left the koala's paw? The answer must be in vector form (m/s @ degrees). Needed: initial velocity Known: x-displacement = 1.5m x-acceleration =...

Homework Statement A projectile is fired at 57.5 deg above the horizontal. Its initial speed is equal to 175.0 m/s. Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored. What is the maximum height reached by the projectile? At what...

Edit: I solved my problem for launch angle. So now I have another question. I am writing a script for a cannon in a video game that will aim at XYZ coordinates by determining the angle and bearing needed to launch the projectile to hit the target. I wish to add a target-leading formula so...

Attached is an image showing the problem. Supposed the β, θ, and √o are given. How do we get the distance from the initial position of the ball to the final position on the inclined plane?

Hey, I came across this question in my textbook, and there isn't an answer for it in the back, so I would just like to check if I have my head around it. The question is: 2 projectiles are launched at the same angle. Projectile 1 reaches a max height of twice that of the projectile 2. What...

Hi, I need to design a robot that shoots basketballs into a basketball hoop. My original idea was that the robot will auto-target on the hoop. The hoop has reflective tape around the "square" behind it, which the robot can locate. Now, when the robot locates this square, it can...

1. I think the most place I'm questioning my answer is the force part of it. A golf club contacts a golf ball for 0.15 s at an angle to the horizontal and the ball subsequently strikes the ground a distance down the fairway. You choose an initial speed (between 25 m/s and 35 m/s) and the...

Hi, I've been muddling over this problem for a few days. I thought there would be a simple approach, but I'm having trouble reaching a solution. Here is the rundown: We have a 2D projectile launcher. It hurls an object from the origin (0,0) at some initial velocity with magnitude V_i at angle...

Projectile motion air resistance calculator - tutorial?? I am not familiar with the terms/words of physics in English, but I hope you can excuse me. I need a tutorial for how to calculate the air resistance in a projectile motion. I want to do it with my calculator and that's why I came...

Can someone give me some two dimensional and projectile motion questions in this thread to work on? I've got a test coming up, and I'm still not 100% with the topics. If you can help-please do so! We all know how it feels to be stressed, cmon people! :smile:

Projectile Motion Question! HELP! Homework Statement There is a marble (15g) in a spring shooter that is shot at 30 m\s at 55 degrees. The ball is on the spring shooter for .01s. Homework Equations What is the change in momentum right as it is shot? What is the force? What is the...

Projectile motion and mechanical energy and a bunch of other stuff...help

Homework Statement A marble launcher shoots a marble with a launch velocity of 6.89 m/s @15.0 degrees above horizontal. -Find the marble's range. (I tried to do this but I need to be able to find the time for horizontal motion... how would I do that?) Homework Equations...

Two basketball players jump for the ball. Both players have exactly the same mass and exactly the same body segment dimensions. Both players also take-off with exactly the same vertical and horizontal velocity of their center of gravity (CoG). Player A jumps up and reaches for the ball with both...

1. My professor explained this concept before, but I didn't quite understand. I need help with understanding how if two players jump for the ball with the exact same mass and body segment dimensions, taking off with the same vertical and horizontal velocity of the CoG, one can have an advantage...

Homework Statement There's a cannon sitting at the edge at the top of a 350 m cliff that fires a 15kg projectile at a muzzle velocity of 250 m/s. On the opposite side there's another cliff that is 470 m in height from the bottom of the canyon as well and has a target on it. So the...

Homework Statement Bob has reached the special time in his life and runs horizontally off the edge of a cliff at 4.2 m/s. If the top of the cliff is 110m above the surface of the ocean, how long does it take Bob to reach the water? Homework Equations Y=Vot+1/2at^2 Y=height t=time...

Homework Statement When you toss a ball up and let it drop to the ground, compared to when you just let it fall, will the time it takes to reach the ground and impact velocity be equal? Homework Equations The Attempt at a Solution For the time, they shouldn't be equal, since the...

Homework Statement A projectile is to be launched so as to go from A to B [which are respectively at the bases of a double inclined plane having angles \alpha and \beta as seen in the figure] and just barely miss a pole of height H that is located at the tip. If the distance between A and B is...

Hi everyone ! My name is Sean. I'm a new member of this forum. I couldn't do any attempts for this problem. Actually, i did many attemps but they went wrong. Homework Statement How can i solve this problem ? Your friend is late for school and is running with a speed of v_f up a hill which...