A 8 kg fish swimming 3 m/s swallows an absent minded 1 kg fish at rest, as shown below. What is the speed of the large fish immediately after lunch in m/s?
2006-11-14 02:16:11 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
It's a nonelastic collision, so energy is not conserved, but momentum is. Use the formula
m1v1+m2v2=(m1+m2)v3 and solve for v3. (The large fish now has mass m1+m2.)
2006-11-14 02:56:37 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
use the elastic collision formula...
just substitute
mas 1 (8 kg)
mas 2 (1 kg)
initial velocity 1 (3 m/s)
initial velocity 2 (o m/s)
final velocity 1 (?)
(hehe i forgot the formula
is this right?)
2006-11-14 02:22:18 · answer #2 · answered by dumb-sel in distress 3 · 0⤊ 0⤋
8 * 3= 9 *x
x =24/9
x= 2 2/3 m/s
2006-11-14 02:21:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
zero
2006-11-14 02:23:31 · answer #4 · answered by JAMES 4 · 0⤊ 0⤋