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
mylen [45]
2 years ago
7

Write your question here (Keep it simple and clear to get the best answer) a car accelerates uniformly from an initial velocity

of 10m/s at 2m/s squre for 4s.What is the average velocity
Physics
1 answer:
Fittoniya [83]2 years ago
8 0

Answer:

Average velocity = 18 m/s

Explanation:

Given the following data;

Initial velocity = 10m/s

Acceleration = 2m/s²

Time = 4 seconds

To find the average velocity, we would use the first equation of motion;

V = U + at

Where;

V is the final velocity.

U is the initial velocity.

a is the acceleration.

t is the time measured in seconds.

Substituting into the equation, we have;

V = u + at

V = 10 + 2*4

V = 10 + 8

V = 18 m/s

You might be interested in
Which two concepts are Newton´s laws based on?
sukhopar [10]

Instantaneous impulse and continuous force: these are the foundations of Newton laws. In short explanation; concept of force and mass.

6 0
3 years ago
Read 2 more answers
A fox is 7 meters from the base of a tree that is 15 m tall. A nest of owls is at the top of the tree. One of the owlets tosses
mamaluj [8]
Refer to the diagram shown below.

In this analysis, wind resistance is ignored, and g = 9.8 m/s².

The meat falls with zero vertical velocity, therefore the time, t, before the meat hits the ground is
\frac{1}{2}*(9.8 \, \frac{m}{s^{2}})*(t \, s)^{2} = (15 \, m) \\ t= \sqrt{ \frac{15}{4.9} }= 1.75 \, s

If the fox catches the meat before it hits the ground, then the fox should travel a horizontal distance d in the same time that the meat travels a horizontal distance (7 -d).
The meat travels a distance of 
7 - d = (1.2 m/s)*(1.75 s) = 2.1 m
or
d = 4.9 m

Let v =  velocity of the fox when it catches the meat.
If the acceleration of the fox is a m/s², then
v = 1.75a
Also,
d= \frac{1}{2} *(a \,  \frac{m}{s^{2}} )*(1.75 \, s)^{2} =  \frac{1}{2}( \frac{v}{1.75})^{2}*(1.75^{2})  \\ 4.9 = 0.875v^{2} \\ v^{2} = 5.6 \\ v = 2.366 \, m/s

Answer:  2.37 m/s  (nearest hundredth)



5 0
3 years ago
If another vehicle is trying to pass your vehicle,
Vladimir [108]

Answer:

Reduce you're speed, and let the other vehicle pass you

8 0
3 years ago
At what point does the comet experience the strongest force of gravity?
spin [16.1K]
I think the answer may be the letter B
5 0
2 years ago
25 points whoever actually ANSWERS the question CORRECTLY
guapka [62]

Answer:

D. The frequency is not affected as the volume of sound increases

Explanation:

Volume of the sound is defined by the amplitude of the wave or how loud a sound is whereas Frequency is basically the pitch of the sound and is inversely proportional to the wavelength . Increasing frequency will increase the pitch of the sound without affecting it's volume.

5 0
2 years ago
Other questions:
  • A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distan
    8·2 answers
  • Explain an amusement park you've ridden discuss the conversion of energy on that ride
    13·1 answer
  • You swing a 2.2 kg stone in a circle with radius 75 cm. At what speed do you need to swing it so its
    8·1 answer
  • A rocket generates a net force (F) of 2,050,000 newtons, and the rocket’s mass (m) is 40,000 kilograms. Use the formula F = ma t
    8·2 answers
  • Your mom is making lunch which forces are acting on your mom
    6·2 answers
  • After a short time, the moving sled with the child aboard reached a rough level surface that exerts a constant frictional force
    8·2 answers
  • Status
    14·1 answer
  • Complete the sentences<br>A flow of negatively charged electrons is an ____________<br>​
    5·1 answer
  • What is a magnetic flux thru closed surface
    6·1 answer
  • Two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kin
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!