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The triple jump is a track-and-field event in which an athlete gets a running start and tries to leap as far as he can with a hop. step, and jump. Shown in the figure is the initial hop of the athlete. Assuming that he approaches the takeoff line from the left with a horizontal velocitvr of 9.9 mfs, remains in contact with the ground for {1.14 s, and takes off at a 50 f angle with a velocity of 13.5 mfs, determine the horizontal component of the average impulsive force exerted lav the ground on his foot if thevr weight F60 Newtons. Let force to the left be negative. and to the right be positive. Your Answer: [