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
Keith_Richards [23]
2 years ago
12

What is the mass of a dog running at a speed of 5 m/s and a momentum of 120.5 kgm/s?

Physics
1 answer:
viktelen [127]2 years ago
6 0

Given:

Momentum of the dog (p) = 120.5 kg m/s

Speed of the dog (v) = 5 m/s

To Find:

Mass of the dog (m)

Concept/Theory:

\underline{\underline{ \bf{\Large{Momentum}}}}

  • It is defined as the quantity of motion contained in a body.
  • It is measured as the product of mass of the body and it's speed.
  • It is represented by p.
  • It's SI unit is kg m/s
  • Mathematical Representation/Equation of Momentum: \boxed{ \bf{p = mv}}

Answer:

By using equation of momentum, we get:

\rm \longrightarrow m =  \dfrac{p}{v}  \\  \\  \rm \longrightarrow m =  \dfrac{120.5}{5}  \\  \\  \rm \longrightarrow m = 24.1 \: kg

\therefore Mass of the dog (m) = 24.1 kg

You might be interested in
If the mass of the block is 5 kg and the speed 7 m/s, what is the work done <br> on the block?
Kamila [148]

Answer:

A block of mass M = 5 kg is resting on a rough horizontal surface for which the coefficient of friction is 0.2. When a force F = 40N is applied, the acceleration of the block will be then (g=10ms

2 ).

Mass of the block=5kg

Coeffecient of friction=0.2

external applied force, F=40N

The angle at which the force is applied=30degree

So the horizontal component of force=Fcos30=40×

23 =20 3 N

While the uertical component of the force acting in upward direction=Fsin30=40× 21

​ =20N

The normal reaction from the surface (N)=mg−Fsin30=50−20=30N

So the ualue of limiting friction=μN=0.2×30=6N

Hence the net horizontal force on the block=Fcos30=μN=20

3

​

N−6N=28.64N

The horizontal acceleration of the block=

m

Fcos30−μN = 528.64

​  =5.73m/s 2

8 0
3 years ago
The sun’s energy is most useful to humans after it is converted to _____.
Trava [24]
The sun’s energy is most useful to humans after it is converted to chemical energy. Living organisms like humans and animals could not directly utilize the energy from the sun because of lack in organs that would allow photosynthesis. Humans and animals obtain the energy from the sun from the intake of food. These foods contain chemical energy which is obtained from the solar energy of the sun. Plants use solar energy for photosynthesis which converts the energy into chemical energy. Then, animals and humans eat the plants obtaining the chemical energy which can readily processed by the body as compared to solar energy.
7 0
3 years ago
3. An astronaut travels to a far-away moon with a 1.5 m long pendulum. She finds it takes
Reika [66]
Have you tried to look this up on Quizlet. I just had a similar question on one on my quizzes & the whole test was on Quizlet
5 0
2 years ago
What type of fat may help lower the risk of heart disease
enyata [817]
Polyunsaturated fatty acids which is Omega-3 fatty acids.
8 0
3 years ago
For a star with a parallax angle of 1/2 of an at arcsecond, what will be its distance in parsec?
avanturin [10]

(1 parsec) is the distance at which an object has a parallax of 1 arcsecond. The distance is about 3.26 light years.

Another way to understand it is:  The distance from which the Earth's orbit appears 1 arcsecond across.

For a parallax angle of 1/2 arcsecond, the distance is <em>2 parsecs </em>(about 6.52 light years).

1 arcsecond is 1/3600 of a degree, 0.00028 degree.  

8 0
3 years ago
Other questions:
  • HOW FAR CAN A PERSON RUN IN 10 MINUTES AT A SPEED OF 260M/MIN
    14·1 answer
  • Since acids are so corrosive they are not found anywhere in the human body true/false
    6·2 answers
  • Two point charges +3 micro coulomb and +8 micro coulomb repel each other with a force of 40N . If a charge of -5 micro coulomb i
    13·1 answer
  • Which of the following astronomical bodies or collection of astronomical bodies is likely to be a part of the others listed?
    6·2 answers
  • What property of objects is best measured by their capacitance?
    11·1 answer
  • Please help me to solve this, I don’t really know what to do.
    14·1 answer
  • What is meant by total internal refraction​
    8·1 answer
  • A toy dart gun has a spring with k= 128 N/m. How much force does it take to pull the spring back 0.0500 m? (Unit = N)​
    13·2 answers
  • In Fraunhofer diffraction wave front used is __________. A. Spherical B. Circular C. Plane D. Conical
    11·1 answer
  • A ball is launched straight up with initial speed of 30.0 m/s. What is the ball's velocity when it comes back to its original po
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!