Projectile Definition and 1000 Threads

Homework Statement A cannon fires a cannonball 500 m down range when set at a 45 degree angle.At what velocity does the cannonball leave the cannon? Homework Equations Vyi=sin45 * Vi Vxi=cos45* Vi The Attempt at a Solution I don't know how to do this question?? Can someone help me? If u had...

Homework Statement A body is dropped from a height of 300 m. At exactly the same moment another body is projected from the ground vertically upwards with a velocity of 150 m.s^-1. Calculate the … 3.2.1 time it will take for the two objects to reach the same height. The Attempt at a...

Homework Statement A baseball is thrown just so that it is able to pass a wall 10m high at a distance that is 1000m away. If it is aimed 30 degrees above the horizontal, what is the initial speed of the baseball? Homework Equations relevant equations shown at the attempt at the solution...

Homework Statement If an object is being launched from the top of a staircase 1.31m high from a pipe 16cm long, at an angle of 60 degrees. Find where the object will land if the initial velocity is 5.442m/s. Homework Equations dx = 2v1^2sinθcosθ / g dy = vyΔt+1/2gΔt^2 dx = vxΔt...

Gr. 11 Projectile motion lab? Homework Statement we are conducting an experiment where a ball is being shot from a cannon from a height of 1.435m we have already calculated our initial velocity, which is 5.442m/s, by timing and measuring when the ball is shot and lands 5 times. Then find...

Homework Statement You are at the mall on the top step of a down escalator when you lean over laterally to see your 1.8 m tall physics professor on the bottom step of the adjacent up escalator. Unfortunately, the ice cream you hold in your hand falls out of its cone as you lean. The two...

Homework Statement A projectile is fired at 30 km/h at the angle θ in x direction of an x-y plane. Ignoring the effects of air resistance, find the maximum range and the value of θ that gives this range Part A: write down the initial horizontal and vertical components of the velocity Part...

Homework Statement A ball is thrown off of a 15m cliff at an angle of 30 degrees above the horizontal and strike the ground 10.4 seconds later. Determine the initial velocity of the ball, the maximum height of the ball, and impact (final) velocity of the ball. Homework Equations vo=vf+at...

A 78g basketball is launched at an angle is 52.4 degrees from a distance of 14.7 m from the basket. Ball is released at the same height as basket (10 feet). Acceleration is 9.8 m/s2. What speed will the player need to give the ball? I know that I'm supposed to use the kinematics and trig to...

Homework Statement A ball is thrown horizontally from the top of a building and lands 20.0m away from it. If the ball is initially thrown at a velocity of 10.0m/s, how high is the building? How long does it take for the ball to reach the ground? Homework Equations dv = Viv * t + 1/2a *...

Homework Statement Points P and Q are in the same horizontal plane at a distance d metres apart. A projectile is shot from P in the vertical plane through PQ towards Q with a speed v m/s at an angle θ. Simultaneously another particle is shot from Q in the same vertical plane towards P with a...

Homework Statement Homework Equations The Attempt at a Solution 3.1) 5m.s^-1...Not sure about that 3.2) vf^2 = vi^2+2*a*deltax = 1.5^2 + 2(-9.8)*300 = 76.67 m.s^-1 down 3.3) Wnet = Ek (0.392*300) + Wf = 0.5*0.04*(76.7-60)^2...

Homework Statement You throw a ball at a coconut on a stand 4.0 m in front of you and 1.0 m above the point at which you release the ball. If you throw the ball at 10.0 m/s, at what angle(s) should you throw it? How long is the ball in the air in each case?Homework Equations ##v=v_o + at \\...

Homework Statement A plane traveling at a speed of 1300 km/h in a northernly direction at a height of 5 km above the the ground suddenly climbs at an angle of 45 degrees to to horizon. Maintaining the speed and angle it releases a projectile as it passes through 7 km in altitude. Find the...

Your gun's muzzle is at coordinate (0,1.12) meters and Your projectile hit the ground at coordinate (1.03,0) meters Compute muzzle velocity (vx):This is all I'm given to figure out the muzzles velocity, so I know I'm given a height and how much it moved horizontally. But I'm getting confused...

hey folks, I am making a program that uses object tracking to watch a juggling pattern and plays notes based on the peaks of the balls. I want to predict when/where(x,y) a peak will happen before it does and what i have to work with is when/where(x,y) the ball appears in each frame. I have...

A diver springs upward from a board that is 3.60 m above the water. At the instant she contacts the water her speed is 13.1 m/s and her body makes an angle of 67.3 ° with respect to the horizontal surface of the water. Determine her initial velocity, both (a) magnitude and (b) direction...

Homework Statement You shoot a cannon at a distant cliff. The cliff is 170m high and 550m away, with the launch speed of the projectile being 110 m/s. Wind resistance is ignored. At what angles, relative to the horizontal, should the projectile be shot to hit the target? Hint: 1/cos2θ =...

How do we write differential equations for projectile motion in 2 dimensions featuring air resistance of magnitude kv^2, acting directly opposite to the direction of motion at that moment in time, where v is the velocity in the direction of motion at that moment in time?

Homework Statement So it's based off of a track&field long jumper. Calculate the initial speed, v0, of a long-jumper where d=7.87 m. Assume a take-off angle of 21.4°, an initial height of the centre-of-mass of 0.920 m, and a final height of 0.460 m. So I use the range equation for...

Homework Statement monkey is a building 79.3 meters tall. as he was free falling, he was shot by a suspect with a dart. which suspect hit the monkey? Suspect a - on a building 65.2 tall, 81meters away from monkey (building to building horizontally), at velocity 55, at angle 10...

Homework Statement A golf ball is hit from the ground into a building window 50m high and 50m away from starting point. Find the initial angle. The Attempt at a Solution I will work backwards for this question. I assume that the final y velocity (Vy) is 0m/s. the first equation I do is: Vy^2=...

Homework Statement A 500kg object is launched from the top of a 12m building with intial speed of 5.2m/s and angle of 38degrees. How far away does object land?Homework Equations y=vit + 1/2at^2 quadratic formula d=vtThe Attempt at a Solution first i separate the initial velocity into its x and...

Homework Statement It's a projectile problem. Basically, you launch a projectile starting from a height ΔY (0.5 m) at speed V0 at an angle θ. Then after time T, the projectile then hits the ground (0m) and sticks to the ground, traveling distance ΔX. The question goes if you are given ΔX...

Homework Statement A golfer stands 390 ft (130 yards) horizontally from the hole and 40 feet below the hole. Assuming the ball is hit with an initial speed of 150 ft/s, at what angle should it be hit to land in the hole? Assume the path of the ball lies in a plane Homework Equations Force of...

Homework Statement So it's a projectile motion problem. I draw a graph showing the parabolic trajectory of the ball, with the start point at the origin. It's final x = 24.8m and final y = 0m Homework Equations We have three constant acceleration equations we use in my course: \vec{v}_{fx}...

Homework Statement A monkey is free falling at a building at height 79.3 Meters. At the same time a dude shoots a dart from a building 65.2 meters tall, 81.0 meters away from monkey building, 55 m/s speed, angle at 10 degree. Homework Equations two dimension kinematics The Attempt...

Homework Statement Julie Throws a ball to her friend sarah. The ball leaves julies hand a distance 1.5m above the ground with an initial speed of 23m/s at an angle of 26° wrt the horizontal. Sarah catches the ball 1.5m above the ground. (a) what is the horizontal component of the balls...

Hello all. I am working on a assignment in which I have to determine if a projectile traveling at a known velocity will break through a side of its containment room (assuming worst case senerios). I have been looking online and in my textbooks and have ended up confusing myself on what...

Homework Statement Question: Provided all else is equal, if a ball is thrown at half the original speed will it travel half as far? Homework Equations Δx = vΔt The Attempt at a Solution In projectile motion, the time of flight will be the same no matter the horizontal...

Homework Statement A brick is thrown upward from the top of a building at an angle of 10.1◦ above the horizontal and with an initial speed of 6.74 m/s. The acceleration of gravity is 9.8 m/s^2. If the brick is in flight for 2.5 s, how tall is the building? Answer in units of m...

Homework Statement Jill throws a Javelin by first accelerating it from rest through 85 cm and releasing it from a height of 2.2 m at an angle of 35 degrees and it goes a distance of 62 m. A) What are the values of the vertical and horizontal components of initial velocity? B) Find...

Homework Statement A rifle is aimed horizontally at a target 50m away. The bullet hits the target 2.5cm below the aim point. A) Find the bullets flight time. B)Find the bullets initial velocity upon leaving the barrel. Homework Equations Projectile kinematic equations/ The Attempt at a...

Homework Statement A cannon shoots a ball at an angle θ above the horizontal ground. Neglecting air resistance use Newton's second law to find the ball's position as a function of time. (Use the axes with x measured horizontally and y vertically.) Let r(t) denote the balls distance from the...

Dear All, I have a problem and would like to solve it as soon as possible. Please find it below: There is a long rod projectile and a semi-infinite target (1-D solution is fine) Projectile velocity 4000m/s Projectile density 7,5g/cm3 Long rod has a length of 50mm and diameter 5mm...

Homework Statement The speed of a projectile when it reaches its maximum height is 0.31 times its speed when it is at half its maximum height. What is the initial projection angle of the projectile? Homework Equations h=(Vi^2 * sin^2 θ) / 2g R=(Vi^2 * sin2θ) / g The Attempt at a Solution...

I don't get how you would attempt problems with 'tilted' projectile motion. So basically here's a situation: You are standing on top of a building, and throw a ball down the hill (hill is linear). Find where it lands Since you are standing on top a building, you have a Δy component...

Here is the question: I have posted a link there to this topic so the OP can see my work.

Without air resistance, bodies travel in a parabola. What is the curve that is traveled when air resistance is included? I found that there are different air resistances, which curves would these types produce?

Homework Statement Hi all! What a great site, thanks in advance for any help! My question is written: The six figures below show rifles that are being fired horizontally, i.e. straight out, off platforms. The bullets fired from the rifles are all identical, but the rifles propel the bullets at...

Homework Statement We did an experiment where we threw a tennis ball far and high. For the far toss: initial height=1.3m time it took to land=1.92sec distance traveled=23.4m For the high toss: initial height=1.37m time it took to land=2.61sec distance traveled=9.5m Now I have...

Homework Statement A cannon has a launch speed of 500m/s and is aimed at a target 2.8km away. a. Write an equation for the maximum horizontal range of the cannon as a function of the launch angle theta. b. At what angle must the cannon be launched in order to hit the target? c. As viewed...

Please help. I think I may be over thinking this problem because it looks very simple. Homework Statement Determine the minimum initial velocity, v0, and corresponding angle, θ0 needed to kick the ball just over the 3m high fence. x = 6m y = 3m Homework Equations X: vx=v0x x = x0+v0xt v0x...

Homework Statement A football punter kicks the football at a 30.0 degree angle above the horizontal and just scores a field goal 40.0 meters away, where the horizontal bar is 3.50 meters above the ground. a. How long is the ball in the air before the goal is scored? b. What was the...

Homework Statement The information required is in this picture: http://i.imgur.com/Dt7F9pg.png There are four questions based on what is in the picture. The questions are: 1) Calculate how high above the ground the floor of the basket is before the can falls out of the basket. 2)...

Hi there I need help with my lab to solve motion equations using Newtons law Basically I did my experiment based in projectile motion, one of the trial give me 88cm out of the ramp, like distance traveled, then the total horizontal length of the ramp was 111.5cm and the height 40cm, also the...

Homework Statement A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes the ball a height h = 1.73 m directly above the back line, and the ball's initial velocity makes an angle theta = 40 degrees with respect to the...

Hi guys, I am really stuck with this homework question... The answer is 14.5 m/s but I do not know how to calculate it. A car has run into a fire hydrant and come to an abrupt stop. A suitcase tied to a rack on top of the car has been thrown off and has landed on the roadside 11.6 m away from...

Homework Statement You are playing catch with a friend in the hallway of your dormitory. The distance from the floor to the ceiling is D, and you throw the ball with an initial speed v0=√(6gD). What is the maximum horizontal distance (in terms of D) that the ball can travel without bouncing...

Homework Statement A soccer player kicks a rock horizontally off a 40.0m-high cliff into a pool of water. If the player hear the sound of the splash 3.00s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s. I wrote down givens in the...