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64_Dynamics 11ed Manual

64_Dynamics 11ed Manual - from the horizontal with an...

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Engineering Mechanics - Dynamics Chapter 12 Given: a 4f t = b 24 ft = c 12 ft = d 12 ft = e 3f t = f 5f t = g 32.2 ft s 2 = Solution: θ atan f c = Guesses v A 1 ft s = t B 1s = t C 1s = h 1f t = Given A cos θ () t B = fv sin θ () t B + 1 2 gt B 2 d = bh + v A θ () t C = fv A sin () t C + 1 2 gt C 2 e = t B t C v A h Find t B t C , v A , h , () = t B t C 0.432 1.521 s = v A 60.2 ft s = h 60.5 ft = Problem 12–81 Show that if a projectile is fired at an angle
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Unformatted text preview: from the horizontal with an initial velocity v , the maximum range the projectile can travel is given by R max = v 2 / g , where g is the acceleration of gravity. What is the angle for this condition? 62...
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