A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball's initial velocity is 12.0 meters per second. What is the magnitude of the ball's initial velocity? A 15.7 m/s B) 18.7 m/s C 7.71 m/s (D) 9.20 m/s
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- 8. The trajectory of a projectile launched from ground is given by the equation y = -0.025 x? + 0.5 x where x and y are the coordinate of the projectile on a rectangular system of axes. Find the initial velocity and the angle at which the projectile is launched. Formula Vy = Vo sin 0 - gt y = Vo sin Ot – gt2 z16 Vx = Vo cos 0 x = Vo cos OtA 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…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? m/s
- A volleyball is spiked so that it has an initial velocity of 17 m/s directed downward at an angle of 45° below the horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball? m/sA projectile is projected from the origin with a velocity of 30.0 m/s at an angle of 40.0 degrees above the horizontal. What is the time it takes the projectile to reach maximum height? Multiple Choice 2.23 s 1.02 s 1.97 s 1.54 s 2.66 sA ball is thrown with an initial velocity vo = 12 m/s making an angle 00 horizontal. It hits the wall of a building after 0.7 s. What is the direction of the velocity of the ball just before hitting the wall? Neglect air resistance and use g = 10 m/s?. = 58° above the 8, = 58 O 39.1 deg. O 18.9 deg. O 10.5 deg. O 26.5 deg. 33.3 deg.
- A cannonball is fired with an initial velocity of 72 m/s, at an angle of 38 ° from the horizontal. a. What are the x and y components of the initial velocity of the cannonball? Vx m/s Vy = m/s b. What are the x and y components of the cannonball's velocity at the highest point of the path? Vx = m/s Vy = m/sA 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 hA baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball's initial velocity is 12.0 meters per second. What is the magnitude of the ball's initial velocity? (A) 9.20 m/s B 18.7 m/s 7.71 m/s D) 15.7 m/s
- Which of the following plot represents the velocity of the projectile along the vertical axis, Vy? Consider that the projectile was launched at some angle, say 45 degrees, above the horizontal. F Vy A B C D E AF. АВ. AE. DE. OC.A marble is fired horizontally from a 3.0m high shelf using a toy gun so that its launch velocity is 2.0m/s. You will use a y axis that points down for this problem since the projectile will not rise above the level of the shelf at all. a)using the equation Δx=(1/2)gt2 find how long it takes until this projectile hits the ground b) using the eqn x = vot for the horizontal part of the flight of this projectile determine how far from the base of the shelf the marble lands c) find the landing speed by using energy conservation (hint: let the mass of the marble be m)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/s