Answer to Question #226703 in Civil and Environmental Engineering for Rexie

Question #226703
A ball is released from a window that is 10 meters above the ground. When the ball leaves your hand, it is moving 8m/s at an angle 300 below the horizontal. Ignoring the effect of air resistance, how far horizontally from the window will the ball hit the ground?
1
Expert's answer
2021-08-23T04:49:45-0400

"U_x=ucos\u03b1=8*cos30=6.92820m\/s\\\\\n\nU_y=usin\u03b1=8*sin30 =4m\/s\\\\\n\nY=usin\u03b1*t+\\frac{1}{2}gt^2\\\\\n\n10=4t+6.92820t^2\\\\\n\nSolving \\space for \\space t=0.95sec\\\\\n\nHorizontal \\space distance=U_x*t=6.92820*0.95=6.58179m"


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