7. A projectile is launched at 4.5 m/s at an angle of 45° from a table that is 0.76 m tall. Where and at what time will the projectile impact the floor?
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- A soccer goal is 2.44 m high. A player kicks the ball at a distance 10 m from the goal at an angle of 25 . The ball hits the crossbar at the top of the goal. What is the initial speed of the soccer ball?29. A volleyball player serves the ball from point A 9. 2m away from the net. Its initial velocity is Vo with e as the launch angle. If the ball is served 0.9m from the floor, and the net is 2.4m high, determine the angle e needed to strike the other side 9.2m from the net. A. 15.59deg. B. 17.31deg. C. 19.06deg. D. 20.59deg. 30. President Rosales of Republic of Chingchong ordered the launch of missiles to Red Island 1200m away from the mainland. Missiles have initial speed of 188m/s and are launched horizontally. How high is mainland Chingchong above sea level? A. 198.69m B. 199.84m C. 200.05m D. 201.38m1104. A projectile is fired with an initial velocity of 193.2 ft per sec upward at an angle of 30° to the horizontal from a point 257.6 ft above a level plain. What hori- zontal distance will it cover before it strikes the level plain? Ans. r 1340 ft 1105. Repeat Prob. 1104 if the projectile is fired downward at 30° to the hori- zontsl.
- Bolve This! 1. A ball is kicked from the ground with an initial velocity of 12 m/s.at an angle 28° above the horizontal. Determine the time of flight, the horizontal distance, and th height reached by the ball.Darshan kicks the ball in a parabolic path. The ball leavesthe player’s foot with a speed of 20 m/s, making an angle of40o with the horizontal. a) Calculate the maximum height of its trajectory [2]b) Determine its velocity as it hits the ground again. Air resistance is negligible.c) How far from Darshan does the soccer ball land?10 Question (äbäi 4) A projectile starts from the origin with Initial velocity vector i, which makes an angle , with the horizontal (0 <0, < 90). At its highest point of its trajectory, which af the fallowing statements is true? F is parallel to v. Fis perpendicalar to i. a. b. řis parallei to a. ř is per pendicular ta ā. Fis perpendicular to a. a b d.
- 11. A projectile is launched with a speed of 31.1 m/s at an angle of 71.2 degrees above the horizontal. The horizontal and vertical components of the initial velocity are shown in the first row of the data table. Fill in the table indicating the value of the horizontal and vertical components of velocity for the projectile during the course of its motion. Vy ax ay Time (s) (m/s) (m/s) (m/s2) | (m/s2) 10.0 29.4 1 2 3 4 6A 65 meter rope that is connected to the top of the building, it is attached to the ground 50 meters from a building. What angle does the rope make with the ground? ut of Select one: 65 m O a. 50.28° uestion O b. 39.7° O c. 37,56° 50m O d. 45°A projectile is fired from the top of a cliff 100m high with a velocity of 450 m/s directed at 45 degrees to the horizontal. Based from this problem, find the value of vy. A. 350.500m/s B. 450m/s C. none D. 318.200m/s E. 275m/s
- 10 Question (äbäi 4) A projectile starts from the origin with initial velocity vector i, which makes an angle ), with the horizontal (0< 0,<90). At its highest point of its trajectory, which af the following statements is true? a. fis parallel to v. Fis perpendicalar to F. Fis parallel to a. vis per pendicular ta a. Fis perpendicular to a, a dNow assume that the projectile is launched from a height of H = 0.16 m above the table at an angle of 68°. Its launch speed is v₁ = 3.21 m/s. Calculate the range R, i. e. the horizontal distance from launch to impact. Use g = 9.81 m/s². Enter your answer in meters without the unit. projectile launcher Viy Vi 0 Vix H R-5. In a waterballoon fight, one team uses a slingshot that can launch the balloons at 50 m/s. a) At what angle(s) should they launch the balloon to hit a target 100m away? b) If they launched a balloon at 20° to the horizon, when and where will it hit? What will its velocity at impact be?