3. A projectile is launched at an elevated target with an initial velocity of of vo = 200 m/s in a direction making an angle of 30 degrees from the horizontal. Vo=200 m/s S00 m 30 R a. Determine the time of flight from A to B. b. Determine the range R. c. Determine the impact velocity at the target.
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- 6. A cannon ball is launched with a speed of 120 m/s at an angle of 30°. a. How fast is the cannonball moving when it reaches the highest point of its trajectory? b. How fast is the cannonball moving before it strikes the ground?5. A projectile starting from ground hits a target on the ground located at a distance of 1000 meters after 40 seconds. a) What is the size of the angle 0? b) At what initial velocity was the projectile launched?Choices: a. 3.15 m b. 1.81 m c. 2.01 m d. 2.58 m e. 4.50 m
- 1. A missile is launched horizontally at A with the speed vo = 188 m/s. the horizontal distance traveled by the missile is d = 1200m. V=188 m/s d=1200 m a. Calculate the time of flight. b. Calculate the value of h c. Calculate the velocity of impact as it strikes the ground B.A rock is thrown off a cliff at an angle of51ºwith respect to the horizontal. The cliff is 110 m high. The initial speed of the rock is 30 m/s. a.How high above the edge of the cliff does the rock rise? b.How far has it moved horizontally when it is at maximum altitude? ( c.How long after the release does it hit the ground? d.What is the range of the rock? e.What are the horizontal and vertical positions of the rock relative to the edge of the cliff att= 2.0 s,t= 4.0 s, andt= 6.0 s?85. A plane travels N30°W at 450 mph and encounters a wind blowing due west at 30 mph. (See Example 9) a. Express the velocity of the plane v, relative to the air in terms of i and j. b. Express the velocity of the wind vw in terms of i and j. c. Express the true velocity of the plane v, in terms of i and j and find the true speed of the plane.
- On planet #3, you fire a projectile horizontally from the edge of a vertical cliff 69.9 m above the ground, with an initial speed of 59.8 m/s. The projectile lands 67.2 m away from the base of the cliff. What is the value of g for planet #3? a. 183.63 m/s^2 b. 110.71 m/s^2 c. 55.35 m/s^2 d. 49.18 m/s^2 2. On planet #4, you fire a projectile from the ground at an initial speed of 20.0 m/s at an angle of 43.1 degrees above the horizontal. The projectile lands 78.7 m away from the launch point. What is the value of g for planet #4? a. 3.5 m/s^2 b. 309.0 m/s^2 c. 211.6 m/s^2 d. 5.1 m/s^25. A ball is thrown horizontally by a pitcher from a height of 1 m and lands 18.4 m away on the ground behind home plate. a). Draw a simplified sketch of only the ball, it's release height, trajectory, and landing point. b) What is the time of flight of the ball? c). What is the initial velocity of the ball? 7. A water park is designing a new water slide that finishes with the rider flying horizontally off the bottom of the slide. The slide is designed to end 1.2 m above the water level, and the average rider is estimated to leave the bottom of the slide at 25 m/s. a). Draw a sketch of the scenario showing the trajectory of the rider from the bottom of the slide to the water. b) Determine how far will the rider fly through the air (horizontally) before hitting the water?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?
- An airplane heads due east at 110 m/s through a 25 m/s cross wind blowing from north to south. The resultant velocity of the airplane is a. 112.805 m/s, 12.80° south of east O b. 135 m/s, 12.80° south of east O c. 112.805 m/s, 12.80° east of south O d. 85 m/s, 12.80° south of east If a vector Á has components Ax = -2 and A, = +3, then A lies in the O a. 4th quadrant O b. 1st quadrant O c. 2nd quadrant O d. 3rd quadrant1. In a practice session, Iris hits a ball horizontally with a speed of 36 m/s from a height of 3.1 m. The ball travels until it hits the ground. a. Determine the time the ball is in the air. b. Determine the horizontal distance traveled by the ball. c. Calculate the ball’s velocity as it hits the ground.A projectile is projected from the origin with a velocity of 30.0 m/s at an angle of 45.0 degrees above the horizontal. What is the range of the projectile? O a. 144 m O b. 91.8 m O c. 48.5 m O d. 86.2 m