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cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.1oops  i got that wrong height above ground = ut + 0.5gt^2 + 2 u = 100 g = 9.8 ( acceleration due to gravity) and t = time so we have h = 100t 4.9t^2 + 2

cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.1to find height after 2 second plug in t = 2 in the above equation

cwrw238
 2 years ago
Best ResponseYou've already chosen the best response.1part c height is on the ground so = zero so 0 = 100t  4.9t^2 solve for t
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