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
yKpoI14uk [10]
3 years ago
15

Trolley A, of mass 180 g, is moving at a velocity of 4 m/s towards trolley B

Physics
1 answer:
Fed [463]3 years ago
8 0

Answer:

<h2>To solve typical questions like this we can use law of conversation of linear momentum...which is</h2>

<h2>T.I.L.M.=T.F.L.M.</h2>

(Total initial linear momentum = total final linear momentum.)

<u>Momentum = mass × velocity</u>

<h2>T.I.L.M = T.F.L.M</h2>

180×4 + 120×0 = 180×0 + 120×V

(180 ×4)/120 = V

<h2>6Ms^-1 = v</h2>
You might be interested in
A 10000 kg rocket blasts off vertically from the launch pad with a constant upward of 2.25 m/s2 and feels no appreciable air res
Sloan [31]

Answer:

The maximum height that the rocket reaches is 645.5 m.

Explanation:

Given that,

Mass = 10000 kg

Acceleration = 2.25 m/s²

Distance = 525 m

We need to calculate the velocity

Using equation of motion

v^2=u^2+2as

Put the value in the equation

v^2=0+2\time2.25\times525

v=\sqrt{2\times2.25\times525}

v=48.60\ m/s

We need to calculate the maximum height with initial velocity

Using equation of motion

v^2=u^2-2gh

h=\dfrac{v^2-u^2}{-2g}

Put the value in the equation

h=\dfrac{0-(48.60)^2}{-2\times9.8}

h=120.50\ m

The total height  reached by the rocket is

h'=s+h

h'=525+120.50

h'=645.5\ m

Hence, The maximum height that the rocket reaches is 645.5 m.

4 0
3 years ago
What are the units for measuring current and voltage
Alina [70]

The unit for measuring current is an " ammeter ".
The unit for measuring voltage is a " voltmeter ".

The unit of measure for electrical current is the " Ampere ".

The unit of measure for potential difference (voltage) is the " volt ".


8 0
3 years ago
WILL MARK AS BRAINLIEST IF CORRECT ANSWERS PLZ HELP 15 PTS!!!!!!
nlexa [21]

Question 9 is 100 N.

Question 10 is No, the bike's motion is not changing so it could be at rest or moving at a constant velocity.

Question 11 is Be doubled.

Question 12 is Ella is correct.

Hope i helped.

6 0
3 years ago
Read 2 more answers
More current makes a ________ electromagnet.<br> longer<br> stronger<br> weaker
Taya2010 [7]

Answer: Stronger

Explanation:

I just took it

7 0
3 years ago
Read 2 more answers
Diffusion and osmosis are forms of passive transport.<br><br> True<br> False
pishuonlain [190]

Answer:

True. Diffusion and osmosis are forms of passive transport.

Explanation:

In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached.

In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The power lines are at a high potential relative to the ground, so there is an electric field between the power lines and the gr
    9·1 answer
  • An astronaut takes an iPod onto the space shuttle. An identical iPod remains on Earth. Which statement about the pull of Earth's
    13·1 answer
  • This scientific tool measures _____ in the metric units of ____​
    15·1 answer
  • You have two photos of a person walking. One shows the person at the corner of Third and Main streets, the other shows the perso
    10·1 answer
  • Which front is a head on collision or neither warm nor cold air moves
    7·1 answer
  • Explain why Pluto has been re-categorized as a dwarf planet.
    5·1 answer
  • how the relationship between photosynthesis and cellular respiration prove that the Laws of Conservation of Mass and Energy exis
    15·1 answer
  • A 100g object begins falling from a height of 5 meters. If g, the acceleration of gravity, is 10 m/s2, how long do you calculate
    5·1 answer
  • Baggage on the floor of the baggage car of a high-speed train is not prevented from moving other than by friction. The train is
    13·1 answer
  • How is the axe an example of a wedge (think about simple machines)?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!