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
Softa [21]
3 years ago
15

Help meeeeeeeeeeeeee! please show work! In a collision, Kara Less who was traveling at 11 m/s while texting in her 1300 kg car,

is struck by another vehicle and finds herself and her phone suddenly moving 2.5 m/s in the opposite direction. What impulse does she experience?
Answer choices


-12,000

-14,000

-16,000

-18,000
Physics
1 answer:
raketka [301]3 years ago
7 0

The impulse experienced is -18,000 kg m/s

Explanation:

The impulse exerted on an object is equal to the change in momentum of the object. Mathematically:

I=\Delta p = m(v-u)

where

m is the mass of the object

v is the final velocity of the object

u is the initial velocity

\Delta p is the change in momentum

I is the impulse

In the collision in this problem,

m = 1300 kg is the mass of the car

u = 11 m/s is the initial velocity

v = -2.5 m/s is the final velocity (negative, since it is in the opposite direction)

Substituting, we find

I=(1300)(-2.5-11)=-17,550 kg m/s

So the closest choice is

-18,000 kg m/s

Learn more about impulse and change in momentum:

brainly.com/question/9484203

#LearnwithBrainly

You might be interested in
The climate of the earth throughout history has always _____.
Vlad [161]

Answer:

The climate of the earth throughout history has always been <em><u>fluctuated between hot and cold periods. </u></em>

7 0
3 years ago
Read 2 more answers
How many hours does it take for the sun's light to reach the edge of the solar system?
Georgia [21]

32 hours is what I got


7 0
3 years ago
Read 2 more answers
Please help answer question​
nika2105 [10]

Answer:

C = 1.01

Explanation:

Given that,

Mass, m = 75 kg

The terminal velocity of the mass, v_t=60\ m/s

Area of cross section, A=0.33\ m^2

We need to find the drag coefficient. At terminal velocity, the weight is balanced by the drag on the object. So,

R = W

or

\dfrac{1}{2}\rho CAv_t^2=mg

Where

\rho is the density of air = 1.225 kg/m³

C is drag coefficient

So,

C=\dfrac{2mg}{\rho Av_t^2}\\\\C=\dfrac{2\times 75\times 9.8}{1.225\times 0.33\times (60)^2}\\\\C=1.01

So, the drag coefficient is 1.01.

4 0
2 years ago
How do the three types of boundary's work together to keep the Earth at equilibrium?
Maurinko [17]
There are three types: divergent, convergent, and transform boundaries. I hope this helps.
8 0
3 years ago
Read 2 more answers
What is the name of the ratio of the voltage applied to a circuit and the current in a circuit
malfutka [58]
Resistance is the name of the ratio of the voltage applied to a circuit and the current in a circuit. Goes under <span>Ohm's Law</span>
4 0
3 years ago
Other questions:
  • What happened on may 24 2002 in history
    5·2 answers
  • What matter does not take up the space in the container?
    14·1 answer
  • A 2.43ug particle moves at 1.97 x 108 m/s. What is its momentum?
    5·1 answer
  • You are standing on a log and a friend is trying to knock
    12·1 answer
  • THE LARGEST HORIZONTAL PLATES IS SEPARATED BY 4mm .The plate is at the potencial of -6V . What potencial should be applied to th
    11·1 answer
  • A firework is ignited, and explodes with a flash and a loud bang as it is blown apart. The system consists of: the firework, the
    5·1 answer
  • Second and third class levers are differentiated by __________.
    9·2 answers
  • The treasure map gives the following directions to the buried treasure ​
    5·1 answer
  • What will happen to other species in the lake, like fish and mollusks and the aquatic plant life?
    11·2 answers
  • 3.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!