12. An object is thrown horizontally at a height of 2 meters at a velocity of 750 m/s. Assume no air resistance. a. How long until the object reaches the ground? b. How far did the object travel horizontally when it hit the ground? BIU ABE ab. HTML
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- 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^2vo= 424.6755m/s20.6m1S- 4 A football is kicked such that it reaches a maximum height of 15 m and returns to the ground. It travels a forward distance of 40 m. rnf 12.5 m/s and a vertical velocity of 40 m/s when Vo= 424.6755m/s 20.Cm1S. AA football is kicked such that it reaches a maximum height of 15 m and returns to the ground. a) What is the initial speed of the projectile? 4. b) 0 = 56.3°) V=2ghmak, b) What is the initial angle? hmax = Vo Sento Sune 2x9.8m3x1s (gm(SC.3099)1 tau@<1,5, B=tanli.s 94m's 0.83205)2 294 m2!s DI6923 tang=4x15mGom Yo 28 %3D 40m 40 0m hamar no = 56,309 5613 5. In the Olympic shotput event, an athlete throws the shot with an initial speed of 12.0 m/s at a 40.0° angle from the horizontal. The shot leaves her hand at a height of at y 1.80 m above the ground. The shot lands at y = 0. a) What is the time for the upward part of the motion only? b) What is the maximum height of the shot relative to the ground? c) What is the flight time? d) How far does the shot…7. At t = 0, a particle leaves the origin with avelocity of u 9.0m/s j the xy plane with an acceleration of a 2.0i- 4.0j m/s2. At the instant the x coordinate of the particle is 15 m, what is the speed of the particle? A. 10 m/s B. 16 m/s C. 12 m/s D. 14 m/s E. 26 m/s maximum height above ch se, 2019. Departme
- 24 ee31.5 Or S wws bom the dt of 4m (e 3. Os the planet Mars, and ohect s thews om the ground and of 3. Whet is the wht is the maimum heighe wd wwle ae und snd lands the ground is i fight a total speed of the Wht is the spesd of the peopecile at the sop of its pathstudent throws a heavy red ball horizontally from a balcony of a tall building with aninitial speed v0. At the same time, a second student throws a lighter blue ball horizontally fromthe same balcony with an initial speed v0 /2. Ignoring air resistance, which of the followingstatements must be true?a. The red ball hits the ground with the greater speed.b. Both balls hit the ground with the same vertical velocity component.c. Both balls hit the ground with the same angle of impactd. The balls reach the ground at the same instant. More than one of the statements can be true.1. 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.
- 4. Ms. Lobert kicks a ball off a building with a velocity of 14.2 m/s at an angle of 33°. The wind blows it horizontally in the direction of the ball's motion. if the wind travels at 12.0 m/s, what is the overall initial velocity of the ball? Round to the nearest hundredth at each step.9: An archer fires an arrow straight up into the air with a speed v0=35.6m/s. Neglect air resistance. a. Find the maximum height, hℎ, in meters, reached by the arrow. b. In terms of known quantities, write an expression for the time the arrow is in the air until it returns to launch height.4. A car is driving at a speed of 25 m/s on a horizontal road. Determine the minimum distance in whichthe car will stop in each of the following cases.A. On a rainy day where µS = 0.125.B. On a sunny day where µS = 0.650.
- 1. A kicked football leaves the ground at an angle 80 = 37.0" with a velocity of 20.0 m/s. Calculate: a. the maximum height b. the time of travel before the football hits the ground c. how far away it hits the ground? Assume the ball leaves the foot at ground level, and ignore air resistance and rotation of the ball.A football player kicks the ball at a 41.0 degrees angle. Without an effect from the wind the ball would travel 53.0 meters horizontally. Hint a. What is the initial speed of the ball in meters per second. 22.91 m/s b. When the ball is near its maximum height it experiences a brief gust of wind that reduces its horizontal velocity by 2.50 m/s. What distance in meters does the ball travel horizontally? 45.6 xmA firework is launched with an initial velocity of 30 m/s at an angle of 65 degrees with respect to the horizontal. The peak height of the firework, just before it explodes. b. The vertical component of the firework’s velocity, just as it reaches the peak of its motion and explodes. c. The horizontal distance traveled by the firework, just as it reaches the peak of its motion and explodes.