A large fish with a mass of 3.65kg moving with an initial velocity of 5.0 m/s grabs a smaller fish with a mass of 1.30 kg. If the smaller fish was moving in the same direction as the larger fish at a speed of 2.5 m/s before he was eaten, what is the velocity of the two fish after impact?

Question

Martin

13 November, 11:24

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Alivia Stephens · Answer 1

m1 = 3.65kg

v1 = 5 m/s

m2 = 1.3 kg

v2 = 2.5 m/s

V=?

m1*v1 + m2*v2 = (m1+m2) * V

V = (m1*v1 + m2*v2) / (m1+m2)

V = 4.34 m/s