A particle is fired straight into the air at 30 m/s. Where is the particle located (in meters) after 1.7 seconds?
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![A particle is fired straight into the air at 30 m/s. Where is the particle located (in meters) after 1.7 seconds?
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P Question 12
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- The drawing shows an exaggerated view of a rifle that has been 'sighted in' for a 91.4-meter target. If the muzzle speed of the bullet is Vo = 309 m/s, there are the two possible angles 0₁ and 02 between the rifle barrel and the horizontal such that the bullet will hit the target. One of these angles is so large that it is never used in target shooting. Give your answers as (a) the smaller angle and (b) the larger angle. (Hint: The following trigonometric identity may be useful: 2 sine cose = sin 20.) (a) Number (b) Number Units Units 91.4 m O1. You are standing on a cliff of height h = 1.5m. You throw a ball straight down towards the ground below at a speed of v, = 0.4m/s. How long does it take for the ball to hit the ground?A gun fires a bullet with an initial velocity of 481.7 m/s at a small target 55.82 m away. a) At what height, above the center of the target, must the gun be aimed so that the bullet hits the center of the target?