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
dimaraw [331]
2 years ago
5

A train travels 8.81 m/s in a -51.0° direction.

Physics
1 answer:
Amiraneli [1.4K]2 years ago
8 0

The displacement of the train after 2.23 seconds is 25.4 m.

<h3>Resultant velocity of the train</h3>

The resultant velocity of the train is calculated as follows;

R² = vi² + vf² - 2vivf cos(θ)

where;

  • θ is the angle between the velocity = (90 - 51) + 37 = 76⁰

R² = 8.81² + 9.66² - 2(8.81 x 9.66) cos(76)

R² = 129.75

R = √129.75

R = 11.39 m/s

<h3>Displacement of the train</h3>

Δx = vt

Δx = 11.39 m/s x 2.23 s

Δx = 25.4 m

Thus, the displacement of the train after 2.23 seconds is 25.4 m.

Learn more about displacement here: brainly.com/question/2109763

#SPJ1

You might be interested in
What does erosion do to land forms and to sediment
Ne4ueva [31]
Well it breaks it away from rain or earthqukes depends but then depostion takes the rocks away and a delta takes it into the ocean
5 0
3 years ago
How much heat does it take to bring 0.12 kg of liquid water at 100c to steam at 140c
Vadim26 [7]

Answer:

162

Explanation:

4 0
3 years ago
Define speed and record the formula for calculating speed. Be sure to label variables.
hoa [83]

Answer:speed is how fast you or something goes

Explanation:

3 0
3 years ago
Read 2 more answers
What is the weight of a 45 kg box? N
Aleks04 [339]

45 kg * 9.8 m/s^2 = <u>441 N.</u>

7 0
3 years ago
Read 2 more answers
A 10 Kg dog is running with a speed of 5.0 m/s what is the minimum work required to stop the dog
ra1l [238]

Answer:

25J

Explanation:

Given parameters:

Mass of the dog  = 10kg

Speed of the dog  = 5m/s

Unknown:

The minimum energy required to stop the dog  = ?

Solution:

The dog is moving with a kinetic energy and to stop the dog, an equal amount of kinetic energy generated must be applied to the dog.

 To find the kinetic energy;

        K.E  = \frac{1}{2} m v²

m is the mass

v is the velocity

Now insert the parameters and solve;

      K.E  =  \frac{1}{2}  x 10 x 5  = 25J

8 0
3 years ago
Other questions:
  • If a car used 260,000 W of power to complete a race in 15 s, how much work did the car do?
    11·2 answers
  • Which f the following are true for gravity
    13·1 answer
  • What is created when charged particles are moving in a single direction and path?​
    8·1 answer
  • Will Mark As Brainliest Plz Help Unit 1 Physics B Test
    10·2 answers
  • Pls help me with this problem!!
    15·1 answer
  • Two floors in a building are separated by 4.1 m. People move between the two floors on a set of stairs. (a) Determine the change
    15·1 answer
  • PLEASE HELP...How much power is done when you exert 30J of Work over 5 seconds?​
    10·1 answer
  • In this unit, the amount of solute is measured in?
    7·2 answers
  • Exercising at your highest peak
    6·1 answer
  • You exit the Vet's Office.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!