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
mixas84 [53]
3 years ago
13

If the unbalanced force is -20.0 N and the mass of the object is 3.75 kg, what is the acceleration of the the object while this

force is acting?
Physics
1 answer:
Slav-nsk [51]3 years ago
7 0

Answer:

a=-5.3m/s2

Explanation:

F=-20N

m=3.75kg

a=?

F=am /:m

a=F/m

a=-20N/3.75kg

a=-5.3m/s2

You might be interested in
What is the electric current measured in
cluponka [151]

An ampere (AM-pir), or amp

6 0
2 years ago
Car A (mass 1100 kg) is stopped at a traffic light when it is rear­ended by car B(mass 1400 kg). Both cars then slide with locke
viva [34]

Answer:

Part a)

v_a = 3.94 m/s

Part b)

v_b = 3.35 m/s

Part C)

v_b = 6.44 m/s

Part d)

Due to large magnitude of friction between road and the car the momentum conservation may not be valid here as momentum conservation is valid only when external force on the system is zero.

Explanation:

Part a)

As we know that car A moves by distance 6.1 m after collision under the frictional force

so the deceleration due to friction is given as

a = -\frac{F_f}{m}

a = -\frac{\mu mg}{m}

a = - \mu g

now we will have

v_f^2 - v_i^2 = 2ad

0 - v_i^2 = 2(-\mu g)(6.1)

v_a = \sqrt{(2(0.13)(9.81)(6.1)}

v_a = 3.94 m/s

Part b)

Similarly for car B the distance of stop is given as 4.4 m

so we will have

v_b = \sqrt{2(0.13)(9.81)(4.4)}

v_b = 3.35 m/s

Part C)

By momentum conservation we will have

m_1v_{1i} = m_1v_{1f} + m_2v_{2f}

1400 v_b = 1100(3.94) + 1400(3.35)

v_b = 6.44 m/s

Part d)

Due to large magnitude of friction between road and the car the momentum conservation may not be valid here as momentum conservation is valid only when external force on the system is zero.

3 0
3 years ago
What is an independent variable ?
seropon [69]
An independent variable is a variable that does not depend on anything. It is manipulated to determine the value of a dependent variable<span>. The dependent variable is what is being measured in an experiment or evaluated in a mathematical equation and the independent variables are the inputs to that measurement. Example: Time would always be an independent variable because nothing affects time, however, time can affect everything. </span>
6 0
2 years ago
Read 2 more answers
Tell the order of vessels a blood cell travels through
il63 [147K]
It goes through your left atrium and right atrium
7 0
3 years ago
after an investigation kuri determines that her hypothesis was wrong what is the best thing for kuri to do next​
aksik [14]
: You could make slight changes to the process or consider wheather the experiment was carried out correctly
7 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the speed of an 8.0 x 10^4 kg airliner with a kinetic energy of 1.1 x 10^9 J.
    9·1 answer
  • Convection is thermal energy transferred (5 points) A only by moving air currents B only by moving liquids C by either moving li
    6·1 answer
  • Do these for me please
    13·2 answers
  • Sound waves need a ___________ for the vibrations to travel and they move in the pattern of a ______________ wave.
    7·1 answer
  • Please help me answer this question !
    15·1 answer
  • Isotopes have variable numbers of electrons.<br> a. True<br> b. False
    13·1 answer
  • How can you explain why there are so many hours of darkness on December 21? How can you explain why there are so many hours of d
    11·1 answer
  • Can you help me please​
    6·1 answer
  • A pickup truck is carrying a load of gravel. The driver hits a bump and gravel falls out, so that the mass if the truck is one h
    13·2 answers
  • What is the effect of the author proposing a "thought experiment" at the beginning of the text? FINANCIAL LITERACY
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!