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17.You launch a projectile at an initial speed of 45.8 m/s from the ground. After 3.30...

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Physics

17.You launch a projectile at an initial speed of 45.8m/s from the ground. After 3.30 seconds of flight, the projectilelands on the ground. At what angle above the horizontal was theprojectile launched?

15.6 degrees

20.7 degrees

31.1 degrees

11.5 degrees

18.A projectile is fired from the ground, reaches amaximum height of 56.4 m and lands a distance of 39.0 m away fromthe launch point. What was the projectile s launchvelocity?

33.3 m/s, 40.1 degrees above horizontal

5.8 m/s, 48.1 degrees above horizontal

57.5 m/s, 24.1 degrees above horizontal

33.8 m/s, 80.2 degrees above horizontal

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