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
liraira [26]
2 years ago
8

The driver of a 2.0 × 10³ kg red car traveling on the highway at 45m/s slams on his brakes to avoid striking a second yellow car

in front of him, which had come to of because locking ahead.After the brakes are applied a constant friction force of 7.5 × 10³ N acts on the car ignore air resistance.
a₎ Determine the least distance should the brakes be applied to avoid a collision with the other vehicle?
Physics
1 answer:
nignag [31]2 years ago
6 0

Answer:

Explanation:

a = F/m = 7500/2000 = 3.75 m/s²

v² = u² + 2as

s = (v² - u²) / 2a

s = (0² - 45²) / (2(-3.75))

s = 270 m

You might be interested in
If you wanted to increase your muscular endurance, it would be important to participate in activities that __________.
Maurinko [17]
In order to increase muscular endurance, it is important to take part in activities that increase the size of muscle cells and the amount of blood that is delivered to the cells<span>. The increased size of the muscle cells reuires them to contract less to accomplish the same task; moreover, the increased blood flow helps deliver oxygen and nutrients to the blood.</span>
3 0
3 years ago
Read 2 more answers
A compound containing sodium and chlorine in a binary ionic compound would be named
elena55 [62]

Answer:sodium chloride.

Explanation:

6 0
3 years ago
Read 2 more answers
How does changes in distance affect the gravitational pull between two objects? Describe and give one example.
maxonik [38]
The formula is

F_grav = G * m1 * m2 / r^2

G m1 and m2 are going to stay the same once chosen no matter what the distance is. The only thing that will change is the distance.

As the distance increases, the Gravitational Force will decrease. It will decrease by quite a bit.

As the distance decreases, the gravitational force will Increase.

The relationship is inverse. The moon travelling around the earth is one example. The earth travelling around the sun is another.
8 0
3 years ago
The number 0.00243<br> has how many significant digits
andre [41]
The above number has 3 significant figures.
7 0
3 years ago
If you run three laps around a circular race track at 5 m/s what do you know about your speed velocity and acceleration?
sergejj [24]
Acceleration is 0, speed is constant, velocity is always changing because if you are running in a circle the direction you are facing always changes
8 0
3 years ago
Other questions:
  • When designing a user interface, the most important information should be placed in the ______ of the screen.
    10·1 answer
  • Which of the following is an explanation of how the natural world works, based on experimentation?
    13·2 answers
  • A tall flagpole is a harmonic oscillator, flexing back and forth with a steady period. The pole rises from a base that is fixed
    12·1 answer
  • While on vacation in the tropical Bahamas, Suzy decides to try out a water jet pack. She places the jet pack on her back (like y
    5·1 answer
  • A meter stick is balanced at the 50 cm mark. You tie a 20 N weight at the 20 cm mark. Where should a 30 N weight be placed so th
    12·1 answer
  • A simple watermelon launcher is designed as a spring with a light platform for the watermelon. When an 8.00 kg watermelon is put
    15·1 answer
  • Cassy shoots a large marble (Marble A, mass: 0.06kg) at a smaller marble (Marble B, mass: 0.03kg) that is sitting still. Marble
    15·1 answer
  • Is is true the state of a medium helps determine the speed of sound passing through the medium
    6·1 answer
  • A rope, under a tension of 221 N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. The displacement
    8·1 answer
  • which of the following instruments measures air pressure? group of answer choices barometer hygrometer radiometer thermometer
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!