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
aksik [14]
3 years ago
12

At a busy intersection, a 1320-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with

a speed of 9.4 m/s. The cars stick together and move with a velocity of 1.5 m/s to the east after the collision. What is the mass of the minivan
Physics
1 answer:
Elza [17]3 years ago
7 0
p = mv so this question pertains to conservation of momentum.

The momentum of the car is 1320*12 = 15840kgms^-1
For the sake of easiness and the fact negatives are annoying, I will assume east to be positive.

So we know 9.4m - 15840 = (1320+m)*1.5
9.4m - 15840 = 1980+1.5m

Rearranging to solve for m
7.9m = 17820
m = 2255.70 = 2300kg to 2sf

You might be interested in
Can someone please help me with this? I'm so confused
bagirrra123 [75]

At theheight where it starts, just before it's dropped, the ball has
some potential energy.  The higher that spot is, the more potential
energy the ball has.  After the drop, whenever the ball is lower than
the height from which it was dropped, it has less potential energy, and
the missing potential energy shows up as kinetic energy ... motion.

This is the whole idea of the roller coaster.  A machine drags it up to
the top of the first hill, giving it lots of potential energy.  After that, as
long as it doesn't try to rise higher than the first hill, it never runs out
of energy, and keeps going.

A). and B).
The ball keeps going forward until it rises again to the same height it
was dropped from ... on the other side.  Then it stops and falls back.

C). The ball can never rise higher than the height it was dropped from.
If the hump in the middle is the same height as the drop-height, then
the ball stops right there, and falls back.

D).  Same as B).  As long as the track inside the loop is never higher
than the droop-height, the ball just keeps going forward.

E). Same idea.  Here it looks like the drop-height is the same as the
top of the loop. The ball can't rise higher than it was dropped from,
so it gets as far as the top of the loop and stops there.  From there,
I think it drops straight down from the top of the loop, instead of
following the curve.


3 0
3 years ago
A driving car around a track is an example of projectile motion
sineoko [7]

Answer:

False. It is propelled but projectile is a specific term denoting air friction only after release of energy.

4 0
4 years ago
What are the distinguishing properties of objects in our solar system?
Ostrovityanka [42]

Answer:uranus

Explanation:it sounds weird

3 0
3 years ago
How is sound detected by the brain
asambeis [7]
I think it's A electrical impulses from the ear
4 0
4 years ago
Read 2 more answers
Object A has twice the mass of object B. Both objects are moving at the same speed. Which accurately describes how inertia relat
Sergeu [11.5K]

Answer:

A. Object A requires twice the force to stop as Object B.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.

Mathematically, it is given by the formula;

Acceleration = \frac {Net \; force}{mass}

<em>Let's assume the following values;</em>

Mass of object B = 10 kg

Mass of object A = 2 * B = 2 * 10 = 20 kg

Acceleration = 5 m/s²

I. To find the force for B;

Force = mass * acceleration

Force = 10 * 5

<em>Force B = 50 Newton</em>

II. To find the force for A;

Force = mass * acceleration

Force = 20 * 5

<em>Force A = 100 Newton</em>

From the calculation, we can deduce that Force A (100 N) is twice or double the value of Force B (50 N).

<em>In conclusion, since object A has twice the mass of object B and both objects are moving at the same speed, object A would require twice the force to stop as Object B.</em>

3 0
3 years ago
Other questions:
  • The primary function of light absorption by photosystems i and ii is to produce __________.
    13·1 answer
  • Per single gallon of gas, Gina's vehicle can go 16 more miles than Amanda's vehicle. If the combined distance the vehicles can t
    6·1 answer
  • A solar eclipse can ONLY occur when the moon is in which phase?
    11·2 answers
  • jennys history teacher always sets the tempature in her classroom very low jenny always shivers when she is in class because she
    15·2 answers
  • A television requires 100 watts of power and a current of 0.8 amps to function properly. what is the voltage at which the televi
    5·1 answer
  • A car moving at 36 m/s passes a stationary police car whose siren has a frequency of 500 Hz. What is the change in the frequency
    14·1 answer
  • An alternating current is supplied to an electronic component with a warning that the voltage across it should never exceed 12 V
    8·1 answer
  • In a resonating pipe that is open at one end and closed at the other end, there is a displacement node at the closed end and a d
    5·2 answers
  • Thermal energy is transferred by....... when objects touch? 1.thermoduction
    9·1 answer
  • Prove that you can do a one foot spin.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!