After starting from the position marked with the "x", a football receiver B runs the slant-in pattern shown, making a cut at P and thereafter running with a constant speed vg = 6.7 yd/secin the direction shown. The quarterback releases the ball with a horizontal velocity of 101 ft/sec at the instant the receiver passes point P. Determine the angle a at which the quarterbackmust throw the ball, and the velocity vA/B of the ball relative to the receiver when the ball is caught. Neglect any vertical motion of the ball.16 yd-B3513 ydUBVa

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Engineering

Civil Engineering

zontal velocity of 101 ft/sec at the receiver when the ball is caught. M

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

After starting from the position marked with the "x", a football receiver B runs the slant-in pattern shown, making a cut at P and thereafter running with a constant speed vg = 6.7 yd/sec
in the direction shown. The quarterback releases the ball with a horizontal velocity of 101 ft/sec at the instant the receiver passes point P. Determine the angle a at which the quarterback
must throw the ball, and the velocity vA/B of the ball relative to the receiver when the ball is caught. Neglect any vertical motion of the ball.
16 yd-
B
35
13 yd
UB
Va

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