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1: a projectile is launched at ground level with an initial speed of 47m/s, at an angle of 33 degree above the horizontal. It strikes
1: a projectile is launched at ground level with an initial speed of 47m/s, at an angle of 33 degree above the horizontal. It strikes a target above the ground 2.7 seconds later. Find the horizontal and vertical distance in meters, from where the projectile was launched to where it hits the target Q2: A ball is thrown horizontally from the top of a 65 m building and lands 125 m from the base of the building. Ignore air resistance, and use a coordinate system whose origin is at the top of the building, with positive y upwards and positive x in the direction of the throw. a)How long is the ball in the air in seconds? B) what must have been the initial horizontal component of the velocity, in meters per second?c) what is the vertical component of the velocity just before the ball hits the ground?d) what is the magnitude of the velocity of the ball just before it hits the ground? Q5: an arrow is shot from a height of 1.7m towards a cliff of height H. It is shot with a velocity of 31m/s at an angle of 60 degrees above the horizontal. It lands on the top edge of the cliff 3.75s later. A) what is the height H if the cliff in m? B) what is the maximum height reached by the arrow long its trajectory in meters? C) what is the arrow's speed just before hitting the cliff in m/s? Q6: an eagle is flying horizontally at a speed of 3.5m/s when the fish in her talons wiggles loose and falls in to the lake 5.4m below. Calculate the magnitude of the velocity of the fish relative to the water when it hits the water in m/s? B) calculate the angle, in degrees by which the fish's velocity is directed below the horizontal when the fish hits the water
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