Projectile Definition and 1000 Threads

Homework Statement I did an experiment on how stretching a rubber band, affects the range or distance of a projectile shot. Variable list: Independent Variable Amount of stretching Dependent Variable Range or distance I created my catapults on my own and used two different rubbers bands...

If air drag is a factor, how will it affect a projectile’s trajectory qualitatively? Its velocity? Its acceleration?

Homework Statement I'm doing a lab report about how the launch angle affects the range of a projectile. Independent Variable Angle of Launch Dependent Variable Range or distance I did an experiment with three trials and here are my results: And then plotted the data. However, it's a...

Homework Statement Two buildings A & B are each of height H as measured from the ground & are located a distance L apart. A tennis ball is shot horizontally with a velocity vo from building A such that it just hits the bottom of building B before hitting the ground. If building B is moved to...

Homework Statement With what speed should a body be thrown upward so the distance traversed in the 5th second and 6th second are equal? Homework Equations No idea since I fail to comprehend the statement of the problem. The Attempt at a Solution This doesn't make sense to me, the distance...

Homework Statement I am very lost and would love help. Given in the description is;"A golf ball leaves a golf club at an angel 30 degrees above the horizontal and lands on the green 150 meters away initial position." With this information i am supposed to find the balls initial velocity, how...

Homework Statement I need to find how to find the optimum angle for take off on the ski flying hill using projectile motion. and why? Homework Equations The Attempt at a Solution [/B] I'm just confused, because would I just use all the formulas above to solve the problem? or do I have to...

Homework Statement So in the problem there is a projectile that is in the air and has no forces acting up, only the -9.8 acceleration down, the projectile is at the maximum height of say 10m and at this height (with a horizontal acceleration of around 40 m/s) explodes into two even 20g pieces...

What is the correct way to calculate the impact force of a 2"x4" flying through the air and hitting a solid cross beam? The knowns are: Velocity: 50 ft/sec Distance To cross beam: 12 ft 2" x 4" Weight: 9 lbs I don't know much the cross beam will deflect on impact, so the stopping distance is...

Hey Guys, I have attempted the question below and need someone to check my work, please. Thanks! 1. Homework Statement A marble rolls off a desk that is 0.86 m above the floor with a horizontal speed of 1.2 m/s. a) What is the marble's horizontal velocity when it is half way to the floor...

Hey Guys, I have attempted the question below and need someone to check my work, please. Thanks! 1. Homework Statement If the hammer was tossed downward at 4.6 m/s from a height of 9.5 m above ground level, how high would it be after 0.75 s? Homework EquationsThe Attempt at a Solution [/B]

How does air resistance change the maximum height of a projectile ?

So I decided to try deriving a general formula for fun. Being a high school student, the calculus got scary very fast. At this point, I'm just curious as to what the best approach to this might be. The approach I used was finding y as a function of x and then inputting it into the arc length...

Hello, One more question, this time it's about projectile motion. Could someone please check my answer to this problem. All my work and applicable equations are shown in the pictures below. If my answer is wrong, please provide me with guidelines for solving the problem. I'm not expecting...

Hello, Could someone please check my answers to this physics problem? All my work and equations are clearly shown in the pictures below. If I got the problem wrong, please provide me with some suggestions as to how I can get it right . I'm not expecting anyone to just give me the answers :)...

Homework Statement A projectile is launched at 750 meters per second at a 30 degree angle to the horizon. How long is it in the air? How far does it go? What is the maximum height that it reaches? Homework Equations Sin(30)=1/2 Cos(30)=sqrt(3)/2 The Attempt at a Solution This is what I have...

1- A person throws an egg directly upward with an initial speed of 27.4 m/s. When the person throws the egg it is located 1.36 m above the ground at the exact moment of release. The effects of air-resistance on the egg can be ignored. (Take the moment of release as t = 0). a. What is the egg's...

Homework Statement There are two cliffs separated by 40 meters (horizontal displacement). An arrow is shot from a bow at an angle and a velocity of 90 m/s. The arrow takes 0.75 seconds to arrive at the other cliff. What is the angle at which the arrow was released? Neglect air resistance...

Homework Statement A ball is thrown with initial speed v0 up an inclined plane. The inclined plane makes an angle of π/6 above the horizontal line and the ball is launched at an angle θ above the inclined plane. No air resistance in this problem. (a) How long does the ball stay in the air? (b)...

Homework Statement [/B] You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 5.00 s after it was thrown. What is the speed of the rock just before it reaches the water 21.0 m below the point where the rock left your...

Homework Statement Ok, so I am attempting to solve a projectile motion problem involving air resistance that requires me to find the total x-distance the projectile traverses before landing again. Given: \\ m=0.7\text{kg} \\ k=0.01 \frac{\text{kg}}{\text{m}} \\ \theta=30 \degree Homework...

Homework Statement "a clown is shot of a cliff of height H at an angle theta and speed v. At the base of the cliff his friends are in a clown car. They start accelerating from rest one second after he is shot from the cannon. Assuming their car has constant acceleration, what is the...

The equation of trajectory of ball B is y = -0.05x^2 where y is vertical displacement and x is horizontal. Prove that the ball is projected horizontallyFor this, the mark scheme says x tan a = 0 so a =0 Since the angle between ball and surface is 0 the object is projected horizontally. I can't...

Homework Statement I won't be able to provide the specific problem (in terms of numbers). I was hoping for a conceptual solution. A ball is thrown. From its initial location, it lands on a shelf a given distance away. I am given the distance to the shelf, the height of the shelf, and the...

Homework Statement A projectile is fired with a velocity v such that it passes through two points both at a distance h above the horizontal. Show that if the gun is adjusted for maximum range, the separation of the points is d = (v/g)(√v2-4gh) Homework Equations y = -gt2/2 + vsinθt x = vcosθt...

Homework Statement 1. A diver jumps from a height of 10m leaving with a velocity of 8m/s find the time for which the diver is in the air and the speed at which the diver enters the water? 2. A ball is launched from point A on a horizontal plane with an angle of 55*. It passes two walls both 2m...

Homework Statement A golfer strikes a golf ball at an angle of 17 degrees above the horizontal. With what velocity must the ball be hit to reach the green which is a horizontal distance of 250 m from the golfer? It is at the same height as the tee. Homework Equations trig equations...

Homework Statement The Great Projecto is fired from a cannon at a velocity of 29.8 m/s at an angle of 50.4 degrees. He lands in a net which is 2.0 m above his starting elevation. What is his velocity when he hits the net? Homework Equations sin=opp/hyp cos=adj/hyp The Attempt at a Solution...

Homework Statement A basketball player throws the ball at a 60° angle above the horizontal to a hoop which is located a horizontal distance L = 2.8 m from the point of release and at a height h = 0.4 m above it. What is the required speed if the basketball is to reach the hoop? Homework...

Homework Statement If an object had been projected horizontally with the same magnitude as in the depicted situation, how would the motion compare with that of the object in the diagram? (I have drawn the diagram in my attachment and have done questions c and d but I don't understand question...

To find the firing angle to hit a target at a given distance using the initial velocity and gravitational acceleration, we use the formula: Angle = Firing XDist = Distance the target is from the gun along the X axis YDist = Distance the target is from the gun along the Y axis Angle =...

Homework Statement trying to figure out how to calculate the angle of release needed to shoot a basketball in a rim. Here's the data I have so far: distance from shooter to rim: 6.28m height of rim: 3m height of shooter: 1.75m Initial velocity at time of release: 8.68 m/s ( hypotenuse of...

Homework Statement "In the Olympiad, some athletes competing in the standing long jump used handheld weights called halteres to lengthen their jumps. The weights were swung up in front just before liftoff and then swung down and thrown backward during flight. Suppose a modern ##78kg## long...

HOMEWORK SUBMITTED IN WRONG FORUM, SO NO TEMPLATE I uploaded an image of the problem, it seems to be fairly straight forward. However, my textbook indicates the answer as being 6 m/s, I am consistently getting 3 m/s. Any help would be appreciated! Because there is no air resistance, the...

Homework Statement A kicker wishes to kick a field goal, so he sets the ball on the ground 30 yards (27m) from the goal. Assuming he kicks the ball at an angle of 45 degrees and a speed of 27m/s, what is the height of the ball above the ground when it goes over the crossbar. Known: R = 27m Vo...

Homework Statement A shot putter with a mass of ##80## kg pushes the iron ball of mass of ##6## kg from a standing position accelerating it uniformly from rest at an angle of ##45^{\circ}## with the horizontal during an interval of ##0.1## seconds. The ball leaves his hand when it is...

Homework Statement a pendulum of mass m and length L is pulled back an angle of θ and released. After the pendulum swings through its lowest point it encounters a peg α degrees out and r meters from the top of the string. The mass swings up about the peg until the string becomes slack with the...

Homework Statement The Great Projecto is fired from a cannon at a velocity of 29.8 m/s at an angle of 50.4 degrees. He lands in a net which is 2.0 m above his starting elevation. What is his velocity when he hits the net? How do I find it with no starting elevation? vx1: 36.02 m/s...

Hello, I'm designing a hanging counterweight trebuchet for my physics project. I'm wondering if there is any way I can calculate the velocity of the projectile when it is released? (It's shot using a sling attached to the arm) Thanks

Homework Statement A ball is hit at a height of 1.00 m above ground such that it barely clears a wall that is 21.0 m high. This wall is located 130 m away from the location that the ball was hit (home plate). The ball was hit an angle that is 30° with respect to the horizontal. Find the...

Homework Statement As shown in the figure below, small object A is projected upward along a smooth slope forming angle α with the horizontal plane, with initial speed v0 in the direction of angle θ from the horizontal within the slope’s plane. The object continues to travel along the surface...

Hey guys, so I'm currently writing a math exploration paper on modelling the optimal tennis serve. I am using Geogebra and I was wondering if you could help me come up with the equation that will help model the trajectory of the tennis ball over time given the following conditions: 1. Initial...

Homework Statement This isn't a specific problem, I just wondering if there was a formula to describe the direction of travel an object would take if it was part of a pendulum and the string broke. Homework EquationsThe Attempt at a Solution Seeing that if the string broke in the instant that...

Homework Statement A toy car rolls off of a table at an initial angle of 0 degrees and an initial velocity of 2.81 m/sec. The ball hits the floor 1.55 m (horizontally) from the edge of this table. How tall is the table? Homework EquationsThe Attempt at a Solution So far I have: Vo=(2.81 m/sec)...

Homework Statement A flying shot glass hits a bottle of whisky behind the bar and topples it. The shot glass bounces off the bottle and lands some distance away, while the bottle falls off the shelf with a much smaller horizontal velocity. Shotglass lands 2.4m from where it originally hit the...

Homework Statement You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 58.0 m away, making a 3.00° angle with...

So I just got beat up by this question on my midterm. I'm not sure if these problems are always called definition of success but that is how my professor refers to them as. The question: (paraphrased) When you walk into your dorm room you like to throw your keys onto the center of your desk...

Homework Statement A student in the back row of class fires a pea shooter in an attempt to hit the blackboard. The student fires it a distance of 23m from his seat to hit the black board. The pea hits the board after 1.4 seconds at a location 9.3 meters below the ceiling. The pea is fired from...

Homework Statement Show that the launch angle θ is given by the expression: θ=tan-1(4hmax/R) where hmax is the maximum height in the trajectory and R is the range of the projectile. Homework Equations hmax=vi2sin2(θ)/2g R=vi2sin(2θ)/g The Attempt at a Solution I am trying to understand the...

Hi, I have a quick question about projectiles on an inclined plane. Specifically, when the projectile is launched down an inclined plane. Is it not possible to use your choice of sign convention? If the projectile is moving from left to right like so: V ...V .....V ....__ V__ Could I not...