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
Vanyuwa [196]
3 years ago
12

A body travels the first half of the total distance with velocity v and second half with v2 calculate avg velocity

Physics
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer:

v = 2 v₁ v₂ / (v₁ + v₂)

Explanation:

The body travels the first half of the distance with velocity v₁.  The time it takes is:

t₁ = (d/2) / v₁

t₁ = d / (2v₁)

Similarly, the body travels the second half with velocity v₂, so the time is:

t₂ = (d/2) / v₂

t₂ = d / (2v₂)

The average velocity is the total displacement over total time:

v = d / t

v = d / (t₁ + t₂)

v = d / (d / (2v₁) + d / (2v₂))

v = d / (d/2 (1/v₁ + 1/v₂))

v = 2 / (1/v₁ + 1/v₂)

v = 2 / ((v₁ + v₂) / (v₁ v₂))

v = 2 v₁ v₂ / (v₁ + v₂)

You might be interested in
What do parallel circuits and series circuits have in common
Sonbull [250]
Voltage of each component is same.
7 0
2 years ago
A group of tissues working together with a common goal make up a(n) _________________.
natita [175]
Organ system is the correct response hope this helps
4 0
3 years ago
2. What energy source produces most of the electrical energy in the United States?
Minchanka [31]

Answer:

Nat gas

Explanation:

Approx:

Natural gas 38%       coal 21%       oil  19%

6 0
1 year ago
Marking brainliest help pls the formula are there to help ^
natta225 [31]

Answer:

Explanation:

Look at the equation for Potential Energy. PE = mass times gravity times the height. Filling in and solving for h:

34.3 = .5(9.8)h so

34.3 = 4.9h so

h = 7 meters

6 0
3 years ago
A wave that has smaller amplitude than another carries less _______​
maksim [4K]

Answer:

A wave that has smaller amplitude than another carries less what

Waves that have smaller amplitude have less energy. the particles of the waves. rarefactions are far amplitude waves. Wavelength is the distance from one crest to the next crest or from one trough to the next trough.

Explanation:

7 0
3 years ago
Other questions:
  • Where does the autotroph get its energy from
    9·1 answer
  • If you were to be drawn into a black hole, what would happen? To the black hole, not to you.
    12·1 answer
  • how is momentum conserved when a cue ball moving with a velocity of 1.5 m/s strikes another billiard ball white playing pool? Sh
    13·1 answer
  • Galactic Alliance Junior Mission Officer (GAJMO) Bundit Nermalloy is predicting the kinetic energy of a supply spacecraft, which
    12·1 answer
  • In which century was the DNA database established?
    8·1 answer
  • f a curve with a radius of 97 m is properly banked for a car traveling 75 km/h , what must be the coefficient of static friction
    8·1 answer
  • Electrically charged particles are found primarily in
    5·1 answer
  • what must be the distance between source of sound and mountain to give an echo in 5 seconds ? ,(speed of sound at 0°c=33m\sec​
    11·1 answer
  • Thermal physics vs atomic physics ...which is easier?​
    8·2 answers
  • A scientist in Northern California is studying the tree rings of a very old redwood tree. He notices that the oldest tree rings
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!