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Physics 15 Online
OpenStudy (anonymous):

A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor?

OpenStudy (anonymous):

\[s=ut + (1/2)gt ^{2}\], put s= +3.9ft u=-14.8ft/s and \[g= 32.2ft/s ^{2}\] which gives t= 1.133 seconds..

OpenStudy (anonymous):

32.2 is gravity pulls down on an object down right

OpenStudy (anonymous):

yeah, its the value of g, acceleration due to gravity, in ft/sec2

OpenStudy (anonymous):

yep the displacement s = -3.9 and g = - 32.2 equation is -3.9 = 14.8t - 16.1t^2 answer is 1.133 secs

OpenStudy (anonymous):

|dw:1330289391588:dw| free body diagram for the question

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