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
love history [14]
3 years ago
13

A child in a boat throws a 4.5kg package out horizontally with a speed of 13 m/s. Calculate the velocity of the boat immediately

after, assuming it was initially at rest. The mass of the child is 24 kg and the mass of the boat is 53 kg.
Physics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

0.78m/s

Explanation:

Now the momentum ensued by the boy throwing the package Is

Mass of package × velocity of package =4.5×13=58.5m/s

This momentum initiated a momentum on the boy-boat system

Total mass of the boy-boat system is 24+53=75kg

Let the velocity ensued by the boat be v.

Hence from conservation of momentum

58.5 =75×v

v= 58.5/75= 0.78m/s

You might be interested in
The air is soundproof??
Svet_ta [14]
Not possible. The air is actually able to travel sound throughout itself without any difficulties. I believe, air actually brings sound closer to the people farther away ; It really helps to stretch sound.
7 0
3 years ago
Read 2 more answers
What is the difference between Weight and Mass?<br>Please give a fair amount of detail!
Sidana [21]
The <em>mass</em> of an object is a measure of how much stuff it's made of.  So it's
a property of the object, like the object's length or color.  It doesn't depend on
where the object is located right now, or on what else is around it..

The <em>weight</em> of an object is the measure of the gravitational force between it
and something else.  The strength of the force depends on the size of both
masses, and also on how far apart they are.  So the weight does depend on
where the object is located right now, and on what else is around it.

I think that sums it up fairly well.
3 0
3 years ago
Read 2 more answers
Biodiversity is defined as
Liono4ka [1.6K]
How many different types of plant and animal life exist in a given habitat.
4 0
3 years ago
How many turns are needed in a solenoid of radius 10 cm and length 20 cm for its self-inductance to be 6.0 H?
MA_775_DIABLO [31]

Answer:

B

Explanation:

5 0
3 years ago
Twice each each lunar month, all year long, these tides occur. Whenever the Moon, Earth and Sun are aligned, the gravitational p
Zarrin [17]

That was a lucky pick.

Twice each each lunar month, all year long, whenever the Moon,
Earth and Sun are aligned, the gravitational pull of the sun adds
to that of the moon causing maximum tides.

This is the setup at both New Moon and Full Moon.  It doesn't matter
whether the Sun and Moon are both on the same side of the Earth,
or one on each side.  As long as all three bodies are lined up, we
get the biggest tides.

These are called "spring tides", when there is the greatest difference
between high and low tide.

At First Quarter and Third Quarter, when the sun, Earth, and Moon form a
right angle, there is the least difference between high and low tide.  Then
they're called "neap tides".
4 0
3 years ago
Read 2 more answers
Other questions:
  • How can a cyclist minimize friction as he or she rides? A. by increasing the weight of the bike B. by increasing the tread on hi
    12·2 answers
  • Which one of the following substances is a liquid fuel used in rocket engines?
    9·2 answers
  • Mari places a marble at the top of a ramp and lets it go. It rolls down. At the bottom of the ramp, the marble bumps into a bloc
    7·2 answers
  • A hot air balloon contains 85,000 moles of air. To what temperature must the
    8·1 answer
  • An ice skater starts with a velocity of 2.25 m/s in a 50.0 degree direction. After 8.33s, she is moving 4.65 m/s in a 120 degree
    12·1 answer
  • find the distance traveled in km when the average speed is 60 km per hour and the time taken is 3 and 1/2 hours​
    7·1 answer
  • A motorcycle skids to a stop on a road.
    5·1 answer
  • A ball rolls off a table and it traveling with a horizontal velocity of 2 m/s and 1 point
    15·2 answers
  • Một điện lượng 60mC dịch chuyển qua tiết diện thẳng của dây dẫn trong khoảng
    13·1 answer
  • Heat is transferred from the sun-warmed surface of earth to the cooler overlying troposphere via _______
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!