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
Lesechka [4]
3 years ago
5

An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. The heavie

r fragment slides 5.10 m before stopping. How far does the lighter fragment slide?
Physics
1 answer:
leva [86]3 years ago
7 0

To solve the problem it is necessary to apply conservation of the moment and conservation of energy.

By conservation of the moment we know that

MV=mv

Where

M=Heavier mass

V = Velocity of heavier mass

m = lighter mass

v = velocity of lighter mass

That equation in function of the velocity of heavier mass is

V = \frac{mv}{M}

Also we have that m/M = 1/7 times

On the other hand we have from law of conservation of energy that

W_f = KE

Where,

W_f = Work made by friction

KE = Kinetic Force

Applying this equation in heavier object.

F_f*S = \frac{1}{2}MV^2

\mu M*g*S = \frac{1}{2}MV^2

\mu g*S = \frac{1}{2}( \frac{mv}{M})^2

\mu = \frac{1}{2} (\frac{1}{7}v)^2

\mu = \frac{1}{98}v^2

\mu = \frac{1}{g(98)(5.1)}v^2

Here we can apply the law of conservation of energy for light mass, then

\mu mgs = \frac{1}{2} mv^2

Replacing the value of \mu

\frac{1}{g(98)(5.1)}v^2  mgs = \frac{1}{2}mv^2

Deleting constants,

s= \frac{(98*5.1)}{2}

s = 249.9m

You might be interested in
Einstein and lorentz, being avid tennis players, play a fast-paced game on a court where they stand 19.0 m from each other. bein
Dvinal [7]
So sometimes when you actually do you work it’s happens and you get answers idk about that
7 0
2 years ago
State clearly how the pith ball electroscope may be used to test for the kind of charge on a body
PilotLPTM [1.2K]
An object with a known charge is first brought close to the ball so as to induce the opposite charge. Lets say we brought a positive object, so the ball will be negatively charged. Afterwards, the object with the unknown charge is brought closer. If the ball is attracted, then the object is positively charged and if it is repelled then the object is negatively charged.
5 0
3 years ago
True or false increasing the intensity and duration of an exercise program too quickly can lead to injury
vodomira [7]
The answer to your question would be false. It is true because duration can not lead to injury quickly.
8 0
3 years ago
Read 2 more answers
A bowl-shaped depression formed by a mountain glacier is termed a(n) ____________.
Andrej [43]
A bowl-shaped depression formed by a mountain glacier is termed a cirque.
3 0
3 years ago
Difinition of gravity
erastovalidia [21]

Answer:

it's all around you and it can't be destroyed

6 0
3 years ago
Read 2 more answers
Other questions:
  • List three ways the earth is different today from when it was first formed
    5·2 answers
  • Would it be faster for you to travel from planet to planet within a solar system, from star to star within a galaxy, or from gal
    12·1 answer
  • Why did the chicken cross the road
    5·2 answers
  • For a Van de Graaff generator to acquire a charge on its surface what must happen?
    10·1 answer
  • Agreen wire that channels electrons away from a power surge is also called a.
    12·1 answer
  • 7. A box is being pushed from the left at 15N and pushed from the right at 10N,
    11·1 answer
  • Bu uyguluma neden ingilizce oldu bilen varmı​
    13·1 answer
  • Ewxrdctfvgybhjnkml,;kjffff
    14·1 answer
  • What direction would the north pole of a bar magnet point if you were to hang the bar magnet from a thin string?.
    14·1 answer
  • 12,3,14,10,13,8 step 3 of 3 : determine if the data set is unimodal, bimodal, multimodal, or has no mode. identify the mode(s),
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!