1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilia_Sergeevich [38]
3 years ago
13

Sally is on a canoe that comes to a stop a small distance from the dock. Since it is such a small distance, Sally decides to jum

p to the dock. She makes the jump, but the canoe moves away from her as she jumps. Since Sally is interested to see what happens on other boats, she makes the same jump from a fishing boat that is much larger than the canoe. Which boat will move away from Sally more quickly?
a. The canoe will move away from Sally more quickly because the fishing boat is larger in mass.
b. The fishing boat will move away from Sally more quickly because it is larger in mass.
c. Both boats will move away at the same speed because Sally has not changed mass and momentum must be conserved.
d. It is impossible to predict which boat moves away from Sally more quickly.
Physics
1 answer:
natita [175]3 years ago
8 0

Answer:

 v₂> v₃  velocity canoe is more than velocity fishing boat

Explanation:

For this exercise we must define a system consisting of the girl, Sally and the boat, in one case the canoe and in the other the fishing boat; for this system we can use moment conservation

Initial moment. Before the jump

           p₀ = (M + m₂) v

Final moment. After the jump

          p_{f} = M v₁ - m₂ v₂

Where m and v are the masses and speed of the canoe

          p₀ = p_{f}

          (M + m₂) v = M v₁ - m₂ v₂

In the case of changing the canoe for the heaviest fishing boat, the final moment is

          p_{f} = M v₁ - m₃ v₃

          p₀ = p_{f}

           (M + m₃) v = M v₁ - m₃ v₃

Since the canoe is stopped the speed v = 0, we write the speed of each boat

Canoe

          0 = M v₁ - m₂ v₂

          v₂ = M / m₂ v₁

Fishing boat

        0 = M v₁ - m₃ v₃

        v₃ = M / m₃ v₁

Since the masses of the fishing boat (m₃) is greater than the mass of the canoe (m₂) the speed of the fishing boat is less than the speed of the canoe, we can find the relationship between the two speeds

        v₂ / v₃ = m₃ / m₂

Here you can see what  v₂> v₃  velocity canoe is more than velocity fishing boat

You might be interested in
Describe the conditions necessary for sublimation to occur​ please help
katovenus [111]

Answer:

Sublimation occurs more readily when certain weather conditions are present, such as low relative humidity and dry winds. Sublimation also occurs more at higher altitudes, where the air pressure is less than at lower altitudes. Energy, such as strong sunlight, is also needed.

6 0
2 years ago
The Atomic number tells us the number of ____ in an atom.
yawa3891 [41]

Answer:

Protons

Explanation:

5 0
3 years ago
Read 2 more answers
Help me please brainlest
crimeas [40]
B . it should be convert energy.
5 0
3 years ago
Read 2 more answers
A mineral deposit along a strip of length 8 cm has density s(x) = 0.01x(8 − x) g/cm for 0 ≤ x ≤ 8. Calculate the total mass of t
vazorg [7]

Answer:

8z

Explanation:

It is 8z

3 0
3 years ago
When an apple falls towards the earth,the earth moves up to meet the apple. Is this true?If yes, why is the earth's motion not n
Harlamova29_29 [7]

Answer:

because the mass of the apple is very less compared to the mass of earth. Due to less mass the apple cannot produce noticable acceleration in the earth but the earth which has more mass produces noticable acceleration in the apple. thus we can see apple falling on towards the earth but we cannot see earth moving towards the apple.

6 0
3 years ago
Other questions:
  • A cell has an internal resistance of 0.02ohms and e.m.f of 2.0v calculate it's terminal p.d if it's delivers (a)5A ( b)50A​
    12·1 answer
  • Suppose the roller-coaster car in fig.6–41 passes point 1 with a speed of if the average force of friction is equal to 0.23 of i
    5·1 answer
  • The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. Which type of wave is fou
    13·1 answer
  • In concept simulation 10.2 you can explore the concepts that are important in this problem. astronauts on a distant planet set u
    14·1 answer
  • What is the equivalent resistance between points A and B?
    6·1 answer
  • When organic polymers joined together on early earth, they formed ______? Protons Protobionts Monomers Plankton
    14·2 answers
  • Volume of water shrinks between__​
    5·2 answers
  • What force is represented by the vector​
    9·2 answers
  • Motion.
    12·2 answers
  • If the velocity of gas molecules is doubled the its kinetic energy will be
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!