- #1
viet_jon
- 131
- 0
[SOLVED] 0 = t(7.8 x 10² m/s - 4.9 m/s² t)
0 = ( 7.8 x 10² m/s ) x t + ½ x (-9.5 m/s²) x t²
I have time, represented by t in the equation twice...how would I figure out what time is? This is probably simple math, but being out of school for 7 years now, someone please refresh my memory.
0 = t(7.8 x 10² m/s - 4.9 m/s² t)
0 = t
or 0 = (7.8 x 10² m/s - 4.9 m/s² t)
4.9 m/s² t = 7.8 x 10² m/s
t = (7.8x10²m/s) / (4.9 m/s²)
= 1.6 x 10² s
Homework Statement
0 = ( 7.8 x 10² m/s ) x t + ½ x (-9.5 m/s²) x t²
I have time, represented by t in the equation twice...how would I figure out what time is? This is probably simple math, but being out of school for 7 years now, someone please refresh my memory.
Homework Equations
0 = t(7.8 x 10² m/s - 4.9 m/s² t)
0 = t
or 0 = (7.8 x 10² m/s - 4.9 m/s² t)
4.9 m/s² t = 7.8 x 10² m/s
t = (7.8x10²m/s) / (4.9 m/s²)
= 1.6 x 10² s