4. The quarterback Q throws the football when the. receiver R is in the position shown. The receiver's velocity is constant at 10 yd/sec, and he catches passes when the ball is 6 ft above the ground. If the quarterback desires the receiver to catch the ball 2.5 sec after the launch instant shown, determine the initial speed vo and angle 0 required. on on ne Ans. 31.1°, 77.1 ft/sec ,2 7' R > UR Q 30 yd at 1. Determine the maximum speed for car A in m/s if the normal acceleration is limited to 0.89g. The roadway is unbanked and level. g = 9.81 m/s2 %3D 21 m 16 m

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