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
Dvinal [7]
3 years ago
12

Three cars (car F, car G, and car H) are moving with the same velocity when the driver suddenly slams on the brakes, locking the

wheels. The most massive car is car F, the least massive is car H, and all three cars have identical tires.
Which car travels the longest distance to skid to a stop?
Physics
1 answer:
Nastasia [14]3 years ago
5 0

Answer:

Car H

Explanation:

Frictional force is a resistant force. It is given as:

F = u*m*g

Where u = coefficient of friction

m = mass

g = acceleration due to gravity

From the formula above, we see that frictional force is dependent on the mass of object and the coefficient of friction.

Since they all have the same tires, the coefficient of friction between the tire and the floor is the same for each car. Acceleration due to gravity, g, is constant.

The only factor that determines the frictional force of each car is the mass. Hence, the more the mass, the more the frictional force.

So, the most massive car will have the most frictional force and hence, will come to a stop quicker than the others. The least massive car will have the least frictional force and so, will take a longer time to stop.

You might be interested in
What is the difference between muscular strength and muscular endurance
MAXImum [283]
Muscular strength is a measure of how much force you can exert in one repetition. Muscular endurance refers to the ability to perform a specific muscular action for a prolonged period of time.
4 0
3 years ago
Read 2 more answers
A thin block of soft wood with a mass of 0.078 kg rests on a horizontal frictionless surface. A bullet with a mass of 4.67 g is
natali 33 [55]

Answer:

Final speed of the bullet is 228.3 m/s

Explanation:

As we know that there is no external force on the system of wooden block and the bullet

so we can say momentum of the system is conserved here

so here we can say

P_i = P_f

m_1v_1 = m_1v_{1f} + m_2v_{2f}

4.67\times 10^{-3}(613) = 4.67 \times 10^{-3}v_{1f} + (0.078)(23)

so we will have

2.86 = 4.67\times 10^{-3} v_{1f} + 1.794

v_{1f} = 228.3 m/s

7 0
3 years ago
A person of mass m will bungee-jump from a bridge over a river where the height from the bridge to the river is h. The bungee co
Likurg_2 [28]

Answer:k_{min}=\frac{18mg}{h}

Explanation:

Given

mass of person is m

Distance between bridge and river is h

chord has an un-stretched length of \frac{2h}{3}

Let spring constant be k

Person will just stop before hitting the river

Conserve energy i.e. Potential Energy of Person is converted in to elastic energy of chord

mgh=\frac{kx^2}{2}

x=h-\frac{2h}{3}=\frac{h}{3}

mgh=\frac{kh^2}{18}

k=\frac{18mg}{h}

Thus k_{min}=\frac{18mg}{h}

5 0
4 years ago
How are the Earth's crust and jigsaw alike?
Neporo4naja [7]
The earth's surface is composed tectonic plates of basaltic oceanic crust with lighter granitic continental crust floating in isostatic balance on the oceanic crust.<span>
</span>
4 0
3 years ago
Read 2 more answers
A person kicks a rock off a cliff horizontally with a speed of 20 m/s. It takes 7.0 seconds to hit the ground.
EastWind [94]
Urbfhdhehjrrr
Rrrrdndndndjdjdjdjjdjdjdjdkdmdmdmdkdjdjdjdjdid
6 0
3 years ago
Other questions:
  • Science Help ASAP please!!! 35 points what is the primary role of the respiratory system in humans.
    5·1 answer
  • Kyle is flying a helicopter and is rising at 5.0m/s when he releases the bag. After 2.0s
    9·2 answers
  • A beam of red light and a beam of blue light have exactly the same energy. Which beam contains the greater number of photons?
    7·1 answer
  • A car is driving down a highway at a speed of 65 miles per hour. To the nearest second, how long wili it take the car to drive 1
    13·1 answer
  • The length ofa train is 44.5 m. Its front is 100. m from a pole. It accelerates from rest at 0.500 m/s^2. (a) How long does it t
    12·1 answer
  • Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and it leaves
    15·1 answer
  • 1 point
    5·1 answer
  • What is the difference between epicenter and focus?
    9·1 answer
  • Which situation results in the least attraction between two magnets?
    14·1 answer
  • Explain the energy transformations that occur when accelerating in a gasoline<br> vehicle.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!