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
Irina-Kira [14]
2 years ago
8

A car is driving directly north on the freeway at a speed of 119 km/h and a truck is leaving the freeway driving 87.7 km/h in a

direction that is 35° west of north. Assume north to be in the +y-direction and east to be in the +x-direction.
What is the magnitude of the velocity of the truck relative to the car?


What is the direction of the velocity of the truck relative to the car?
Physics
1 answer:
blsea [12.9K]2 years ago
3 0

The magnitude of the velocity of the truck relative to the car is 183.9 km/h

The direction of the velocity of the truck relative to the car is 67 ⁰ north of west.

<h3>Velocity of the truck relative to the car</h3>

The velocity of the truck relative to the car is the resultant velocity of the vehicles.

The resultant velocity of the car is calculated as follows;

<h3>Vertical component of the velocity</h3>

Vyi = 119 km/h

Vy2 = 87.7 km/h x sin(35) = 50.3 km/h

Vy(total) = 119 km/h + 50.3 km/h = 169.3 km/h

<h3>Horizontal component of the velocity</h3>

Vx = -87.7 x cos(35) = -71.84 km

<h3>Resultant velocity</h3>

v = √Vy² + Vx²

v = √[(169.3²) + (-71.84)²]

v = 183.9 km/h

<h3>Direction of the velocity</h3>

θ = arc tan(Vy/Vx)

θ = arc tan(169.3 / -71.84)

θ = -67 ⁰

θ = 67 ⁰ north of west.

Thus, the magnitude of the velocity of the truck relative to the car is 183.9 km/h and the direction of the velocity of the truck relative to the car is 67 ⁰ north of west.

Learn more about resultant velocity here: brainly.com/question/24767211

#SPJ1

You might be interested in
HELP PLZ ASAP!!!!!
zubka84 [21]

Answer:

C. Oxygen combines with carbon dioxide

Explanation:

B i o l o g y

Also, oxygen is a reactant and carbon dioxide is a product of cellular respiration that does not combine during this process

Hope it helps

5 0
3 years ago
You drop a rock down a well and hear a splash 3 s later. As Charlie Brown would say, the well is 3 seconds deep. How fast is the
vampirchik [111]
Since it was dropped, it should be the speed of gravity which is 9.8 meters/second
5 0
2 years ago
A Martian rover found an interesting rock that could contain signs of what Mars was like long ago. It grabbed
kodGreya [7K]

Answer:

It would be PE=16kg * 9.8 m/s^2 * 1m = 160 J

Explanation:

The person who asked this question ended up answering his own question so I'm here to let you know all that the answer was founded by the person whos posted the question himself full credit goes to him :)

3 0
2 years ago
The sky diver travels download at a speed of 56m/s for 40s calculate the distance travelled during this time. use the equation
DerKrebs [107]
I don’t know i just need points 44
5 0
3 years ago
Electrons can move between substances ſchree ways. Which of the following can be
Lady bird [3.3K]

Answer:

B.) “Shininess” should be explained as “Light bounces off the moving electrons.”

Explanation:

6 0
3 years ago
Other questions:
  • What name is given to the wall of water that makes landfall just ahead of a hurricane?
    12·1 answer
  • What is the longest wavelength in the molecule’s absorption spectrum??
    13·2 answers
  • What is a concave lens?
    15·1 answer
  • An auditorium measures 35.0 m x 30.0 m x 5.0 m. The density of air is 1.20 kg/m^3. (a) What is the volume of the room in cubic f
    6·1 answer
  • Rutherford once assumed that when the earth was first formed, it contained equal amounts of U-235 and U-238. From this, he was a
    7·1 answer
  • a meteor is falling towards earth with 4m/s^2 acceleration due to gravity. if mass and radius of the earth are 6*10^24kg and 6.4
    14·1 answer
  • Describe how engineers designed a parachute to create the forces needed to slow down the falling person.
    9·1 answer
  • How to calculate the slope of position time graph ?
    8·1 answer
  • According to the law of conservation of momentum, in an isolated system:
    15·2 answers
  • Can a tree live on another planet?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!