Physics

posted by .

A 3.8 kg fish swimming 1.3 m/s swallows an absent minded 1.4 kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity v of the smaller fish before lunch?

  • Physics -

    The momenta of the two fish before "lunch" must be equal and opposite in order for the final momenum fo be zero. If v is the unknown velocity,
    3.8*1.3 + 1.4*v = 0

    v = -(3.8*1.3)/1.4 = __

  • Physics -

    -3.52857

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physical science

    a 5 kg fish swimming at a speed of 1m/s swallows an absent minded 1 kg fish swimming toward it at 4 m/s. the speed of the larger fish after lunch is?
  2. physics

    A small fish is dropped by a pelican that is rising steadily at 0.61 m/s. After 3.2 s, what is the velocity of the fish?
  3. Physics

    A small fish is dropped by a pelican that is rising steadily at 0.65 m/s. (Assume the positive direction is upward.) 1. After 2.5 s, what is the velocity of the fish?
  4. Physics

    A great white shark with a mass of 3000 kg swimming at 3.00 m/s swallows a 250 kg fish at rest. What is the speed of the great white shark right after swallowing the fish?
  5. physics

    A small fish is dropped by a pelican that is rising steadily at 0.60 m/s. After 2.8 s, what is the velocity of the fish?
  6. Math

    A study found that 27% of the fish in a river are trout, 36% are salmon, and 18% are sturgeon. If a large fish trap is set and it captures 216 fish, how many of those fish are likely to be fish types other than the ones mentioned?
  7. algebra1

    Melissa wants to figure out how many fish live in a small lake by her house .She ccatces 15 fish and tags the (safely).Shethen outs thoes fish back in the lake .Then next day ,she catches 28 fish .of those 28 fish, 3 of them have the …
  8. Math

    Mary has two tanks of fish. If she transfers 15 fish from the larger tank to the smaller tank then the number of fish in the smaller tank will be 5/7 of the number of fish in the large, tank. Given that there are 35 fish in the smaller …
  9. math

    Mary has two tanks of fish. If she transfers 15 fish from the larger tank to the smaller tank then the number of fish in the smaller tank will be 5/7 of the number of fish in the large, tank. Given that there are 35 fish in the smaller …
  10. math

    Mary has two tanks of fish. If she transfers 15 fish from the larger tank to the smaller tank then the number of fish in the smaller tank will be 5/7 of the number of fish in the large, tank. Given that there are 35 fish in the smaller …

More Similar Questions