An Olympic diver is on a diving platform 5.20 m above the water. To start her dive, she runs off of the platform with a speed of 1.3 m/s in the horizontal direction. What is the diver's speed, in m/s, just before she enters the water?
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- An Olympic diver is on a diving platform 9:40 m above the water. To start her dive, she runs off of the platform with a speed of 1.18 m/s in the horizontal direction. What is the diver's speed, in m/s, just before she enters the water? m/s Additional MaterialsYou stand at the edge of a 22.0 m high cliff and throw a stone straight down with a speed of 8.00 m/s. Before it hits the ground, the stone is traveling with a speed of 22.3 m/s. Let down be the positive vertical direction. Using the given coordinate system, what is the sign of the displacement of the stone from the point it is released until just before it hits the ground? O Negative Zero O PositiveA rock is thrown off a vertical cliff at an angle of 44.5o above horizontal. The cliff is 75.7 m high and the ground extends horizontally from the base. The initial speed of the rock is 18.4 m/s. Neglect air resistance. E: How high above the ground, in meters, is the rock 2.42 s before it hits the ground? F: How far horizontally from the cliff, in meters, is the rock 2.42 s before it hits the ground?
- A baseball is hit into the air at an initial speed of v0 = 25.6 m/s at angle ? = 60o above the horizontal. At the same time the ball is hit, an outfielder starts running towards the batter and catches the ball at the same level it was hit. ?he outfielder is initially L = 91.7 m from home plate. 1) Find the average speed of the outfielder. Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 18 m/s at an angle 38 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground. What is the maximum height the ball goes above the ground? #What is the distance between the two girls? After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, and is moving with a speed of 17 m/s when it reaches a maximum height of 9 m above the ground. # What is the speed of the ball when it leaves Sarah's hand? #How high above the…A rocket is fired at a speed of 86.0 m/s from ground level, at an angle of 31.0° above the horizontal. The rocket is fired toward an 7.92- Im high wall, which is located 16.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall? Number i UnitsA golf ball leaves the ground with an initial velocity vo = voxî + vovĵ. The ball hits a vertical wall which is located a horizontal distance b from the point of projection. When the ball strikes the wall, it is at a height h above the ground and it is moving horizontally. Which of the following choices correctly relates the ratio h/b to the components (vox , Voy) of the initial velocity. FL Vo h
- Dock diving is great form of athletic competition for dogs of all shapes and sizes. Sheba, the American Pit Bull Terrier, runs and jumps off the dock with an initial speed of 9.02 m/s at an angle of 25.0° with respect to the surface of the water. Sheba begins at a height of 0.840 m above the surface of the water. What is her total time of flight up until the instant before she hits the water? Express your answer in seconds.A soccer ball is kicked from the ground with an initial speed of 18.9 m/s at an upward angle of 48.1. A player 48.4 m away in the direction of the kick starts running to meet the ball at that instant. What must be his average speed if he is to meet the ball just before it hits the ground? Neglect air resistance.Use g-9.81 m/s². Number 4.32 Unit m/sA sailor is enjoying a nice day on his sailboat, sailing west with the wind at constant velocity. At one point the sailor spots an anchored buoy some distance to the east of the boat, and turns on his motor to head towards it. The boat kept gliding to the west for some distance before turning around and heading eastward. The boat was traveling initially with velocity v = -6.0i m/s and it took the the boat 2.0 s to turn around. What is the velocity of the boat, 5.0 s after the motor is turned on? The coordinate system is set up such that the +i direction is East. Pick the correct answer O +3.0î m/s O -9.0i m/s O -3.0î m/s o +9.0å m/s o +2.0i m/s
- A rocket is fired at a speed of 73.0 m/s from ground level, at an angle of 33.0° above the horizontal. The rocket is fired toward an 8.91- m high wall, which is located 27.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall? Number i Units ✪A soccer goal is 2.44 m high. A player kicks the ball at a distance 23 m from the goal at an angle of 26°, and the ball just hits the top of the goal. What is the initial speed of the soccer ball (in m/s)?A firefighter d = 55.0 m away from a burning building aims a jet of water from a firehose at an angle of 8 = 51.0° above the horizontal. The water has initial speed vo= 38.0 m/s. Assume the height of the firehose's nozzle to be negligible. a) What is inm/s the horizontal component of the velocity of the water when it hits the wall? CHECK b) How long in seconds will it take the water to reach the wall? CHECK c) At what height in meters will the water strike the building? CHECK