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
Lina20 [59]
3 years ago
6

a car initially at rest move with the constant accerates along straght line read after it's spread increase and finally related

uniformly. the time interval for the three parts of the jounry are in the ratio 1:3:1 find average velocity ?​
Physics
1 answer:
nasty-shy [4]3 years ago
8 0

Answer:

32km per hour

Explanation:

Explanation:

In first case v = a t

==> a t = 40 km p h

Now distance covered S1 + S2 + S3

S1 = 1/2 a t^2 and S3 = 1/2 a t^2

But S2 = 3t * 40 = 120 t km

Hence total distance = at^2 + 120 t

Time taken (total) = t + 3t + t = 5 t

Hence average speed = at^2 + 120 t / 5 t

Cancelling t we have at + 120 / 5 = 40 + 120 / 5 = 160/5 = 32 km per hour

You might be interested in
As Earth moves around the Sun, its _____ is approximately perpendicular to the force of gravity exerted by the Sun.
Bogdan [553]

SORRY i forgot but i think its A because the sun has a really strong gravitational pull


sorry and hope it helps

4 0
2 years ago
Read 2 more answers
Cardiovascular exercise can
UkoKoshka [18]
Can <span>get your heart rate up and increases blood circulation throughout the body.</span>
3 0
3 years ago
Read 2 more answers
On the way to school, Jed traveled 100m north, 300m east, 100 north, 100m east, and 100m north. A.) Find the total distance trav
Oduvanchick [21]

Answer:

Total distance = 700 m

Displacement = 500 m

Explanation:

Notice that Jed travelled a total of 3 x 100 m = 300 m in the North direction, and 300 m + 100 m = 400 m in the East direction. Therefore the total distance he travelled is:  300 + 400 = 700 m.

But the actual displacement is given by the Pythagorean theorem as the hypotenuse of a right angle triangle of legs 300 m and 400 m:

displacement = \sqrt{300^2+400^2} =\sqrt{250000} =500\,m

5 0
3 years ago
Quick Physics Question
sveticcg [70]
It is Real,Virtual,The Same Size, Inverted
8 0
2 years ago
A harmonic force of maximum value 25 N and frequency of 180 cycles&gt;min acts on a machine of 25 kg mass. Design a support syst
kramer

Answer:

registrar y de h2rhrjlekeek tert2h2jwkwlwlwlwlwlwñlwk

3 0
3 years ago
Other questions:
  • A girl delivering newspapers covers her route by traveling 2.00 blocks west, 3.00 blocks north, and then 7.00 blocks east.
    9·1 answer
  • The accepted standard measurement for mass is the A) liter. B) pound. C) Newton. D) kilogram.
    8·1 answer
  • A spring-loaded pellet gun is designed to fi re 3.00-g projectiles horizontally at a speed of 45.0 m/s. (a) If the spring is com
    5·1 answer
  • A bell is rung. What best describes the density of air around the bell?
    11·2 answers
  • People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means th
    8·1 answer
  • At least how many Calories does a mountain climber need in order to climb from sea level to the top of a 5.42 km tall peak assum
    13·1 answer
  • A car that travels from point A to point B in four hours, and then from point B back to point A in six hours. The road between p
    8·2 answers
  • What is the momentum of an object weighing 7.5 kg moving at 1.6 m/s?
    9·2 answers
  • Which of the following best demonstrates Newton's Third Law?
    7·2 answers
  • What is the force of a ball if it has a mass of 10 kg and accelerates at an acceleration of 20 m/s^2? *
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!