309_Dynamics 11ed Manual

309_Dynamics 11ed Manual - A man kicks the ball of mass M...

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Engineering Mechanics - Dynamics Chapter 15 Problem 15-9 The jet plane has a mass M and a horizontal velocity v 0 when t = 0. If both engines provide a horizontal thrust which varies as shown in the graph, determine the plane’s velocity at time t 1 . Neglect air resistance and the loss of fuel during the motion. Units Used: Mg 10 3 kg = kN 10 3 N = Given: M 250 Mg = v 0 100 m s = t 1 15 s = a 200 kN = b 2 kN s 2 = Solution: Mv 0 0 t 1 t ab t 2 + d + Mv 1 = v 1 v 0 1 M 0 t 1 t ab t 2 + d + = v 1 121.00 m s = Problem 15-10
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Unformatted text preview: A man kicks the ball of mass M such that it leaves the ground at angle θ with the horizontal and strikes the ground at the same elevation a distance d away. Determine the impulse of his foot F on the ball. Neglect the impulse caused by the ball’s weight while it’s being kicked. Given: M 200 gm = d 15 m = 30 deg = g 9.81 m s 2 = 307...
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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