Solution 0 kg projectile is fired at an angle of 30 0 above the horizontal with an initial speed of 128 m s from the top of a cliff 150 m above level ground
Solution kg projectile is fired at an angle of above the horizontal with an initial speed of m s from the top of
Solution kg projectile is fired at an angle of above the horizontal with an initial speed of
at an angle of above the horizontal with an initial speed of m s from the top of a cliff m above level ground
Solution kg projectile is fired at an angle of above the horizontal with an
initial speed of m s from the top of a cliff m above level ground
Solution kg projectile is fired at an angle of above the
Solution kg projectile is fired
(Solution) 0-kg projectile is fired at an angle of 30.0 above the horizontal with an initial speed of 128 m/s from the top of a cliff 150 m above level ground,...

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A 46.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 128 m/s from the top of a cliff 150 m above level ground, where the ground is taken to be y = 0.      (a) What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.)(b) Suppose the projectile is traveling 90.7 m/s at its maximum height of y = 321 m. How much work has been done on the projectile by air friction?c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up?