- #1
petuniac
- 31
- 0
a salmon has to jump a 1.3 m falls to complete its journey. How fast must is be going when it leaves the water to reach the water on top of the falls?
vi = ?
vf = 0 m/s (can i assume this)
a = -9.8 m/s^2
d = 1.3 m
t = ?
use vf^2 = vi^2 + 2ad to find vi
0 = vi^2 + 2(-9.81)(1.3)
but can't take the square root of a negative number?? this is where i am stuck...
vi = ?
vf = 0 m/s (can i assume this)
a = -9.8 m/s^2
d = 1.3 m
t = ?
use vf^2 = vi^2 + 2ad to find vi
0 = vi^2 + 2(-9.81)(1.3)
but can't take the square root of a negative number?? this is where i am stuck...