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
Sav [38]
3 years ago
7

Which of Newton’s laws accounts for the following statement? Negative acceleration is proportional to applied braking force

Physics
1 answer:
LenaWriter [7]3 years ago
4 0
I would say 2nd law. Go over this with your teacher though
You might be interested in
Two toy cars (m1 = 0.200 kg and m2 = 0.250 kg) are held together rear to rear with a compressed spring between them. When they a
timurjin [86]

Answer:

Acceleration of the second particle at that moment is given as

a_2 = 2.12 m/s^2

Explanation:

As we know that both cars are connected by same spring

So on this system of two cars there is no external force

So we will have

F = 0 = m_1a_1 + m_2a_2

now we have

m_1 = 0.200 kg

m_2 = 0.250 kg

a_1 = 2.65 m/s^2

now we have

0.200(2.65) + 0.250a_2 = 0

so we have

a_2 = 2.12 m/s^2

8 0
3 years ago
A child's top is held in place upright on a frictionless surface. The axle has a radius of ????=3.21 mm . Two strings are wrappe
tekilochka [14]

Answer:

Angular momentum, L=6.47\times 10^{-3}\ m

Explanation:

It is given that,

Radius of the axle, r=3.21\ mm=3.21\times 10^{-3}\ m

Tension acting on the top, T = 3.15 N

Time taken by the string to unwind, t = 0.32 s

We know that the rate of change of angular momentum is equal to the torque acting on the torque. The relation is given by :

\tau=\dfrac{dL}{dt}

Torque acting on the top is given by :

\tau=F\times r

Here, F is the tension acting on it. Torque acting on the top is given by :

\tau=2F\times r

2T\times r=\dfrac{L}{t}

L=2T\times r \times t

L=2\times 3.15\times 3.21\times 10^{-3}\times 0.32

L=6.47\times 10^{-3}\ m

So, the angular momentum acquired by the top is 6.47\times 10^{-3}\ m. Hence, this is the required solution.

7 0
3 years ago
What is the stopping distance at night for a passenger vehicle traveling at 50 mph?
RideAnS [48]
Bgvuob ujimka  balcentra
7 0
3 years ago
The metric unit of force is the
Verizon [17]
Newtons. Force is mass times acceleration. Mass is measured in kilograms (kg) and acceleration is measured in meters per second squared (m/s^2.) These units (kg and m/s^2) multiplied together like in the equation force equals mass times acceleration (F=ma) gives a product with Newtons as the unit. 
6 0
3 years ago
What are some guidelines for using self-assessments?
lakkis [162]
Decide which components you wish to assess yourself. There is no set order in which you do this. you could, for an example assess one or two elements and skip the rest.
4 0
2 years ago
Read 2 more answers
Other questions:
  • Newton's law of universal gravitation states that every object in the universe attracts every other object. true or false.
    8·2 answers
  • If for every action there is an equal and opposite reaction how do things move
    7·1 answer
  • Two resistors of 5.0 and 9.0 ohms are connected inparallel. A
    12·1 answer
  • How has God designed sound waves so that a person is able to hear all the different instruments in a musical piece at the same t
    11·1 answer
  • There is a current of 112 pA when a certain potential is applied across a certain resistor. When that same potential is applied
    14·1 answer
  • A ball is kicked at an angle of 35° with the ground.a) What should be the initial velocity of the ball so that it hits a target
    9·1 answer
  • Lasers emit light of a certain frequency in one, precise direction. The light that a laser emits can be tuned to have a high fre
    13·2 answers
  • Why is an important to come up with a plan for how are you to respond to negative peer pressure before the situation happens
    11·1 answer
  • Human impact on the environment
    10·1 answer
  • Suppose a mad scientist went back in time to the beginning of the solar system and caused the newly formed Mars and Venus to swi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!