15) Consider a soccer player kicking a stationary ball of mass m = 0.5 kg. The angle of release of the ball is 0 = 25.2° measured from the ground and the maximum height reached by the ball is h = 4.5 m. Assumptions: Air resistance is negligible (i.e., the ball undergoes a projectile motion) The foot of the soccer player remained in contact with the ball for 0.12s a. Determine the speed of release, v, of the ball (Answer: v=22.1m/s) b. Determine the horizontal distance, I, between the initial position of the ball and the landing point ( I=38.3m) С. Determine the momentum, p, of the ball at the instant of takeoff (p=9.98î+4.70ĵkg m/s) d. Determine the magnitude of force, F, applied to the ball by the soccer player (F=91.9N)

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Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.