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
Lana71 [14]
3 years ago
13

Physics Homework MathPhys homie if you see this pls help

Physics
1 answer:
cluponka [151]3 years ago
6 0

Answer:

1. -8.20 m/s²

2. 73.4 m

3. 19.4 m

Explanation:

1. Apply Newton's second law to the car in the y direction.

∑F = ma

N − mg = 0

N = mg

Apply Newton's second law to the car in the x direction.

∑F = ma

-F = ma

-Nμ = ma

-mgμ = ma

a = -gμ

Given μ = 0.837:

a = -(9.8 m/s²) (0.837)

a = -8.20 m/s²

2. Given:

v₀ = 34.7 m/s

v = 0 m/s

a = -8.20 m/s²

Find: Δx

v² = v₀² + 2aΔx

(0 m/s)² = (34.7 m/s)² + 2 (-8.20 m/s²) Δx

Δx = 73.4 m

3. Since your braking distance is the same as the car in front of you, the minimum safe following distance is the distance you travel during your reaction time.

d = v₀t

d = (34.7 m/s) (0.56 s)

d = 19.4 m

You might be interested in
How is force useful as well as harmful.<br>Comment with the statement.​
vladimir1956 [14]

No, we can't say force is useful or harmful. All else being equal, force is either not harmful or useful depending on the body that is applying it and where it is applying it.

Given how it affects motion, force is a crucial idea. It is a relationship that, in the absence of an opposing force, modifies an object's motion. However, a push or a pull that any object feels is the simplest definition of force. Due to the fact that force is a vector quantity, it possesses both a magnitude and a direction.

How force is useful

A body at rest can move with enough force.A body in motion may be slowed down or stopped by it.It has the power to quicken the pace of an object in motion.Along with its shape and size, it can also alter the direction of a moving body.

How force is harmful

  • Force has the power to alter an object's state of motion.
  • Moving objects can shift direction due to force.
  • Moving things' speeds can be increased by force.
  • Moving items can become slower due to force.
  • Force has the power to alter an object's shape.

Learn more about force here

brainly.com/question/14362949

#SPJ9

7 0
1 year ago
What is the shape of the orbit of satellites?
Rainbow [258]
All objects in orbit must follow the path of an ellipse (one of Keplers laws)
8 0
3 years ago
Help please!!!!!!!!!!!!!!!!!!!!
Pavel [41]
Looks like you need to review through the lesson and take notes as it tells you in the lesson what each of these are.
8 0
3 years ago
Dependent variable is the _______ that happens because of the UI independent variable. (No answer choices provided)
Damm [24]

Answer: One is called the dependent variable and the other the independent variable. The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable.

4 0
3 years ago
1. You throw a ball up in the air with an initial speed of 35 m/s. At what point(s) in time is
Lady bird [3.3K]

Answer:

1750s

Explanation:

50×35=1750

speed = distance/time

6 0
3 years ago
Other questions:
  • What happens to the amplitude of the resultant wave when two sound waves with equal amplitude constructively interfere?
    5·2 answers
  • The speed of an object undergoing constant acceleration increased from 8.0 meters per second to 16.0 meters per second in 10. Se
    8·1 answer
  • Now let’s apply Coulomb’s law and the superposition principle to calculate the force on a point charge due to the presence of ot
    11·1 answer
  • How do scientists determine the number of neutrons in an isotope of an atom?
    5·1 answer
  • How does the current model of the atom differ from<br> j j thomas model
    8·1 answer
  • In the graph, which two regions show the particle undergoing zero acceleration and negative acceleration respectively?
    11·1 answer
  • Complete the following statement: When a glass rod is rubbed with silk cloth, the rod becomes positively charged asa) negative c
    13·1 answer
  • The change in the wind patterns on the earth that causes an increase in ocean temperatures is
    8·1 answer
  • Human impact on the environment
    10·1 answer
  • How are the magnetic domains of a magnet different from the domains of an ordinary piece of metal?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!