2006-07-22 08:17:23 · 6 answers · asked by P5 1 in Education & Reference ➔ Homework Help
h= 1/2 g t^2
= 1/2 * 980*(20)^2
= 1/2 *980*400
= 980*200
= 196000 cm
2006-07-22 09:26:02 · answer #1 · answered by flori 4 · 2⤊ 1⤋
h=1/2*g*t^2 =>1/2*980*20*20=>490*400=196000 cm and to use the standard international unit it is 1960 m.since it is more than 1000 m we can also use the unit of km.and say it is 1.96 km.
2006-07-22 15:49:37 · answer #2 · answered by raj 7 · 0⤊ 0⤋
Plug it all in. h=1/2 x 980 x 400
196000
2006-07-22 15:24:10 · answer #3 · answered by Samantha Avansworth 2 · 0⤊ 0⤋
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn. Old Marsh's Deep One clan has all the answers. I'a Dagon!
2006-07-22 15:21:14 · answer #4 · answered by Golgo-13 2 · 0⤊ 0⤋
Do your own homework!!!
2006-07-22 15:21:00 · answer #5 · answered by googy 2 · 0⤊ 0⤋
196000cm/s
2006-07-22 15:27:01 · answer #6 · answered by creative_idea_thinker 2 · 0⤊ 0⤋