steve Alexander

i just want to know form where i got on this formula the 4.9t² on this formula s=4.9t²+Vot+h because the book only say that a physics theory shows that when an object is thrown upward with an initial velocity Vo, its approximate height is given by that qu...

an object is fired upward at the end of the burn it has an upward velocity of 245m/s and is 14.7 m high a) find the maximum height and when it is attained b) when it reaches the ground i know that i have to use the quadratic function s= -4.9t²+Vot+h but f...

s=-4.9t²+245t+14.7 s=-4.9(t²-245/4.9t)+14.7 s=-4.9(t²-50t)+14.7 s=-4.9(t²-50+625-625)+14.7 s=-4.9(t²-50+625)+(-4.9)(-625)+14.7 s=-4.9(t-25)²+30625.5+14.17 s=-4.9(t-25)²+3077.2 as you can see on the process of the problem on the part that says...s=-4.9(t²-...