Q1. An archer aims at the bullseye of a target 50.0 m away. The arrow is at the same height as the bullseye. If the archer angles the arrow upwards at 12°, what must the arrow's initial speed be in order to hit the bullseye?
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Q: image
A: A = 35 degree u = 11 m/s T =2.9 s
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- Shereen is in physics class, working on her projectile motion lab. Part of the lab is to launch a projectile into a can. This physics lab is taking place outside on the school field. Shereen launches the projectile that is 9.0 m above the ground, with a velocity of 7.0 m/s [43°above the horizontal]. The projectile does land in the can. Determine the initial velocity components. What is the time of flight? What is the horizontal distance travelled? What is the speed on impact? At what angle could Shereen have launched the pencil to get a greater horizontal displacement?1A. You're feeding the fish at the pond by the baseball field and decide to do some physics calculations. You notice that you release the fish food 1.65 m above the surface of the water, and during one throw, when the food left your hand at 3.20 m/s with a direction of 13.0° below the horizon, you managed to hit a fish near the surface. How fast was the food going right before it hits the fish? 1B.Two kittens are running toward each other, one is named Chloe and the other is named Luna. Luna runs at a speed of 1.40 m/s. If Chloe jumps at an angle of 37.0° with speed 2.70 m/s, at what distance from Luna should Chloe jump to make sure she lands on Luna?An archer fires an arrow at a target that is a horizontal distance d = 55 m away; the bull’s-eye of the target is at same height as the release height of the arrow. 1. At what angle, in degrees above the horizontal, must the arrow be released to hit the bull’s-eye if the arrow's initial speed is 35 m/s?
- 7. You launch a projectile at an initial speed of 41.2 m/s from the ground. After 5.40 seconds of flight, the projectile lands on the ground. At what angle above the horizontal was the projectile launched? 30.0 degrees 40.0 degrees 60.0 degrees 28.6 degreesYou are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball is kicked at 33° from the edge of the building with an initial velocity of 19 m/s and lands 55 meters away from the wall. How tall, in meters, is the building that the child is standing on? y m 20An archer fish spies a meal of a grasshopper sitting on a long stalk of grass at the edge of the pond in which he is swimming. The fish is to successfully spit at and strike the grasshopper, which is 0.200 m away horizontally and 0.745 m above his mouth. a. What is the minimum speed at which the archer fish must spit? answer in m/s b. What angle (in degrees) above the horizontal must he spit? answer in degrees
- A soccer ball is kicked horizontally off a 22.0 m high cliff and lands at a distance of 35.0 m from the base of the cliff. Determine the initial horizontal velocity of the soccer ball. What is the final velocity and direction of the ball?A cannonball is fired from a height of 25 m above ground level, with an initial speed of 22.36 m/s and at an angle of 63.4⁰ above the horizontal. The cannonball lands at ground level. a. How long was the ball in the air (the “hang time")? b. How far does the cannonball travel horizontally? c. What is the final speed of the cannonball just before making contact with the ground?7. A projectile is fired horizontally at 9 m/s from a 7.2 m high wall. a. Find its speed when it reaches the ground. b. At what angle does it hit the ground?
- A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 650 m/s. The gun is pointed directly at the center of the bull's- eye, but the bullet strikes the target 0.029 m below the center. What is the horizontal distance between the end of the rifle and the bull's-eye? Number i eTextbook and Media Units #5. A cannonball fired horizontally from a cliff has a velocity directed at 60° below horizontal when it hits the ground 3.0 seconds later. a) How high is the cliff? b) How far from the base of the cliff does the canon ball land?A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.8m/s at an angle of 23 degrees SE from the window (downwards, not upwards). It hits the ground 5s later. a. How far horizontally from the building does the ball land on the ground? b. Find the height that the ball was thrown from