astressedibstudent Posted September 24, 2019 Report Share Posted September 24, 2019 Hey, I have a physics question that I am unable to solve: "A falling ball has a velocity of 12.7ms-1 as it passes a window 4.81 m above the ground. When will it hit the ground?" Thanks in advance! Reply Link to post Share on other sites More sharing options...
kw0573 Posted September 28, 2019 Report Share Posted September 28, 2019 The relevant quantities in this question are the 1) time 2) initial velocity 3) displacement 4) acceleration. The corresponding equation is s = ut + 1/2 * at^2 Let down be the positive direction. s = 4.81m, u = 12.7 m/s, a = 9.81 m/s^2, t = ? Plug the values into the quadratic and solve for the positive t. t = 0.335 s Reply Link to post Share on other sites More sharing options...
astressedibstudent Posted September 29, 2019 Author Report Share Posted September 29, 2019 Thank you! Reply Link to post Share on other sites More sharing options...
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