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A test is fired stright up from rest with a net acceleration of20m/s2. after 4 seconds the motor turns off, but the rocket continues to coast upward. what maximum elevation does the rocketreach?
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A projectile is launched at an angle of 13.0° above the horizontal. What is its initial speed if it hits a target that is located a horizontal distance of 155 m from the launch point and 10.5 m below the launch level?
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