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
Nady [450]
3 years ago
8

A bird is flying to the right when a gust of wind causes the bird to accelerate leftward at 0.5\,\dfrac{\text m}{\text s^2}0.5 s

2 m ​ 0, point, 5, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction for 3\,\text s3s3, space, s. After the wind stops, the bird is flying to the right with a velocity of 2.5\,\dfrac{\text m}{\text s}2.5 s m ​ 2, point, 5, space, start fraction, m, divided by, s, end fraction.
Physics
1 answer:
Licemer1 [7]3 years ago
7 0

The initial velocity of the bird before the gust of wind : <u>4 m/s</u>

<h3>Further explanation</h3>

An equation of uniformly accelerated motion  

\large {\boxed {\bold {x = xo + vo.t + \frac {1} {2} at ^ 2}}}

v = vo + at  

Vt² = vo² + 2a (x-xo)  

x = distance on t  

vo/vi = initial speed  

vt/vf = speed on t /final speed

a = acceleration  

Acceleration is a change in speed within a certain time interval  

a = Δv /Δ t  

\displaystyle a=\frac{v2-v1}{t2-t1}

Let complete the task :

A bird is flying to the right when a gust of wind causes the bird to accelerate leftward at 0.5 m/s² for 3 s. After the wind stops, the bird is flying to the right with a velocity of 2.5 m/s.

Assuming the acceleration from the wind is constant, what was the initial velocity of the bird before the gust of wind?

we can use formula :

vf = vi + a.t

vf = final velocity = 2.5 m/s

vi = asked

a = - 0.5 m/s²(leftward=negative)

t = 3 s

then :

\displaystyle 2.5=vi-0.5.3\\\\vi=2.5+1.5\\\\vi=\boxed{\bold{4\frac{m}{s}}}

<h3>Learn more</h3>

The car reach the end of the road

brainly.com/question/13750982

Keywords: uniformly accelerated motion,  distance, velocity, acceleration

#LearnwithBrainly

You might be interested in
When an object of weight w is suspended from the center of a massless string?
igomit [66]
I attached a picture of the diagram associated with this question.

Now,
When we check the vertical components of the tension in the rope, we will find that we have two equal components acting upwards.
These two components support the weight and each of them has a value of TcosΘ

The net force acting on the body is zero.
Fnet=Force of tension acting upwards-Force due to weight acting downwards
0 = 2TcosΘ -W
W = 2TcosΘ
T = W / 2cosΘ

4 0
3 years ago
Read 2 more answers
6. A child tugs on a rope attached to a 0.62-kg toy with a horizontal force
ser-zykov [4K]

Answer:

Explanation:

Force Mass * acceleration

F = ma

a = F/m

Sum of force = 16.3N - 15.8N = 0.5N

Mass = 0.62kg

Substitute

a = 0.5/ * 0.62

a = 0.81m/s²

The acceleration of the toy is 0.81m/s²

8 0
3 years ago
Juans mother drives 7.25 miles southwest to her favorite shopping mall. What is the average velocity of her automobile if she ar
Irina-Kira [14]
21.75 Miles Per Hour

I got this by multiplying 7.25(3) because I know 20 minutes is 1/3 of 1 he
5 0
3 years ago
The spring constant for the spring in above Table is 20 N/m.
satela [25.4K]
The answer is 0.025J.

W=1/2*k*x^2
W=1/2*20*0.050^2
W=0.025J
5 0
3 years ago
A 28-kg beginning roller skater is standing in front of a wall. By pushing against the wall, she is propelled backward with a ve
Scorpion4ik [409]

Answer:

33.6 Ns backward.

Explanation:

Impulse: This can be defined as the product of force and time. The S.I unit of impulse is Ns.

From Newton's second law of motion,

Impulse = change in momentum

I = mΔv................................. Equation 1

Where I = impulse, m = mass of the skater, Δv = change in velocity = final velocity - initial velocity.

Given: m = 28 kg, t = 0.8 s, Δv = -1.2-0 = -1.2 m/s (Note: the initial velocity of the skater = 0 m/s)

Substituting into equation 1

I = 28(-1.2)

I = -33.6 Ns

Thus the impulse = 33.6 Ns backward.

3 0
3 years ago
Other questions:
  • Which of these accurately describes the products of a reaction?
    14·2 answers
  • Pilots often take advantage of the ____,which are highly-speed winds between 7km and 16 km above earths surface.
    9·1 answer
  • What is the term for the process by which a portion of a glacier breaks off and falls into the water
    10·1 answer
  • A uniform rod is hung at one end and is partially submerged in water. If the density of the rod is 5/9 that of water, find the f
    14·1 answer
  • Explain the expression “light travels at a speed”.
    12·1 answer
  • What does the model below represent?
    12·2 answers
  • What happens to the direction of an object as an unbalanced force acts on<br> it? Give an example
    6·2 answers
  • When do you have to get a job please help
    9·1 answer
  • Study the roller coaster diagram. Match the labels to the correct location on the roller coaster.
    9·2 answers
  • Complete the following sentence. Pressure in a liquid depends on the __________ of the liquid.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!