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2. The ball is thrown off the top of the building. If it strikes the ground in 3 sec, determine a) The initial velocity VA. b



Y х 22.5 m 13 18
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ACA * Son 22.5m 18m TAR= 35 se = 18m y = -22.5m X CVA COS OASE VA COSOA = x 18 6 t 3 ain y-dirn ya (VA sin ont 0.5942 rasinuasor initich vewrity (from equal VAR 6 WSC 0.253) VA = 9. 3838 mis 9.3834 mis. so. So as initial velocity; VA = incinatim cing

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