3. A student standing on a 25 m building wishes to hit a target which is 7 m tall and 40 m away. The student throws the ball horizontally. a) How long does it take the ball to strike the target? b) What is the initial velocity of the ball?
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- 1. A ball rolls off the edge of a table 1.44m above the floor and strikes the floor at a point 2m horizontally from the edge of the table. a. What is the time the ball was in the air? b. What is the initial velocity of the ball?5. A projectile is fired at a 60° angle as shown below. The projectile reaches a maximum height ymax above its initial position. The range of the projectile is 25 m, and the time of flight of the projectile is 3 s. Answer the following questions. 25 a) Find the initial x and y components of the velocity. b) How long does it take the projectile to reach its maximum height? c) What is the final height H of the projectile?1. A ball is thrown into the air with an initial x velocity of 15 m/s and an initial y velocity 10 m/s from an initial height of 20 m. a) What is the maximum height of the ball? How long does it take the ball to reach its maximum height? b) What is the range of the ball?
- A ball is fired from a cannon inclined at 360 above the horizontal. The speed with which it leaves the barrel is 200 m/s and the mouth of the cannon is 2 m above ground level. Assume level ground. a) what are the horizontal and vertical components of the initial velocity of the cannon ball ? b) Determine the velocity of the cannon ball at t = 6 seconds. c) How far down range does the ball landA student stands at the Edge of a Cliff and throws a Stone horizontally Over the edge with a speed of 18 m/s. The cliff is 50.0 m above a flat, horizontal beach. A) What are the components of the initial velocity? B) How long after being released dos the stone strikes the beach below the cliff? C)With what speed does the stone land? Your final answers should be written using scientific notationDuring Memphis vs Warriors game, with the latter in possession the score is 70 – all. With 1.5 seconds remaining on the game clock, Stephen Curry (1.780 m high) decides to shoot. If he is 4.5 m away from the ring and the height of the ring from the floor is 3.048 m. a. At what angle must he release the ball in order to score if he shoots at 7.8 m/s? b. If Ja Morant with standing reach (2.91 m high) is standing 1 m away from the ring jumps in order to block the shot, how high must he jump to force an overtime?
- Billy-Joe stands on the Brooklyn Bridge kicking stones into the water below. If Billy-Joe kicks a stone with a horizontal velocity of 3.50 m/s, and it lands in the water a horizontal distance of 5.40 m from where Billy-Joe is standing, what is the height of the bridge2. In Olympic archery competitions, the standard distance between the archer and the target is 70m. A recurve bow used in this sport can launch an arrow with an initial speed of 55m/s. An archer shoots an arrow horizontally at the bullseye. How far below that bullseye has this arrow fallen when it hits the target? (This is why an archer has to aim above the bullseye.) b. What is the magnitude of the arrow's velocity when it hits the target? a. Vo VfSeveral people stand on a bridge over a river. The bridge is not level, so the people are all different heights above the river. Each person throws a stone to the river. a) The first person is 26.8 m above the river and throws her stone with a speed of 16.6 m/s at an angle of 6 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below). How long does it take her stone to hit the water, in seconds? b) The second person is 19.0 m above the river and throws his stone with a speed of 17.1 m/s at an angle of -21.4 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below). What is the range of his stone, in meters? c)The third person is 9.1 m above the river and throws their stone with a speed of 6.5 m/s at an angle of 9.3 degrees to the horizontal (positive degrees are above horizontal, negative degrees are below). What is the speed of this stone (in m/s) just before it strikes the river?
- A boy 11.5 m above the ground in a tree house throws a ball for his dog, who is standing right below the reee house and starts running the instant the ball is thrown. The boy throws the ball horizontally at 8.50 m/a. A.) how fast must the dog run too catch the ball just as it reaches the ground? Express the answer in meters per second. (V= blank m/s) b.) how far from the tree will the dog catch the ball? (D= blank meters)2. A golfer hits a golf ball with an initial velocity of 16 m/s at an angle of 44° above the horizontal. The golfer is at an initial height of 15 m above the point where the ball lands. What is the magnitude of the velocity of the ball just before it lands?A ping pong ball rolls at a speed of 0.60 m/s toward the edge of a table which is 0.80 m high. The ball rolls off the table. a) How long is the ball in the air? b) How far out from the point directly below the edge of the tabletop does the ball hit the floor?