A daredevil motorcycle jump spans a horizontal distance of 47.4 m and the landing height is the same as the takeoff height. If the speed at takeoff was 30.3 m/s, then what was the launch angle, in degrees? Ignore air resistance.
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- A long jumper can jump a distance of 8.0 m when he takes off at an angle of 45° with respect to the horizontal. Assuming he can jump with the same initial speed at all angles, how much distance does he lose by taking off at 30°?A projectile is thrown from the top of a cliff with an initial speed of 25 m/s at an angle of 600 up from the horizontal. If the projectile lands 100 m from the base of the cliff how tall is the cliff?In the absence of air resistance, a projectile is launched from and returns to ground level. It has a range of 16m. Suppose the launch speed is doubled, and the projectile is fired at the same angle above the ground. What is the new range?
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