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
MaRussiya [10]
1 year ago
11

an object is acted on by a drag force with a magnitude that is proportional to the speed. the object accelerates downward at 3.0

0 m/s2 when it is falling with a speed 20.0 m/s. what is the terminal speed of the object as it is falling?
Physics
1 answer:
Nutka1998 [239]1 year ago
7 0

The terminal speed of the object falling down is 66.67 m/s.

The terminal speed acquired by the body when,

Weight of the body = Drag force of the body

It is given,

Drag force is directly proportional to the speed,

So,

F = CV

Where F is drag force,

V is the speed,

C is the constant,

So, it can be written as C = F/V.

The weight of the body = mg

The weight of the body = 10m

M is the mass and g is the acceleration due to gravity,

The drag force when the speed is 20m/s.

Drag force = ma

a is the acceleration during the drag force which is given to be 3m/s²,

Drag force = 3m

Now we can write,

F₁/V₁ = F₂/V₂

F₁ is the drag force at 20m/s speed.

F₂ is the weight of the body and V₂ is the terminal speed,

Now, it can be written,

3m/20 = 10m/V₂

V₂ = 66.67 m/s.

So, the terminal speed is 66.67m/s.

To know more about terminal speed, visit,

brainly.com/question/14605362

#SPJ4

You might be interested in
Why is water considered to be a complex compound
DedPeter [7]
HEY THERE !!

\huge{COMPOUND:-}
Compounds contain two or more different elements. 


Water is a molecule because it contains molecular bonds . Water is also a compound  because it is made from more than one kind of element. (oxygen and hydrogen).

So If you like, you can say that water is a molecular compound.

HOPE IT HELPED YOU.
7 0
3 years ago
Read 2 more answers
How are vibration waves and energy related to sounds
Lesechka [4]

In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. ... In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

3 0
3 years ago
Read 2 more answers
Resistance independent to : a. Shape b. Size c. Physical state d. None
lesantik [10]

Answer:

d.none

Explanation:

because shape size and physical actually do are dependant

7 0
3 years ago
Read 2 more answers
You push very hard on a heavy desk, trying to move it. You do work on the desk:
frozen [14]

Answer:

(C) Only if it starts moving

Explanation:

We know that work done is given by

W=F.d=Fdcos\Theta

So there are two case in which work done is zero

First case is that when force and displacement are perpendicular to each other

And other case is that when there is no displacement

So for work to be done there must have displacement, if there is no displacement then there is no work done

So option (c) will be the correct option

3 0
3 years ago
A small airplane flies 780 miles with an average speed of 260 miles per hour. 1.5 hours after the plane leaves, a Boeing 747 lea
Lera25 [3.4K]

Answer:

520 miles per hour

Explanation:

Let the speed of the Boeing 747 be x miles per hour.

The small airplane covers distance of 780 miles with speed 260 miles per hour.

Also,

After 1.5 hours the Boeing 747 leave the same place and reaches at same time. Both covered distance of 780 miles.

So,

<u>Time taken by Boeing 747 + 1.5 hours = Time taken by small plane.</u>

Also,

Time =  Distance/ speed

So,

780 / x + 1.5 = 780/ 260

Solving for x, we get:

<u>x = 520 miles per hour</u>

6 0
3 years ago
Other questions:
  • An engine performs 6400 j of work on a motorbike the motorbike and the rider have a combined mass of 200 kg if the bike started
    11·1 answer
  • Which statement would be the best evidence that heat transfer through radiation has occurred and why? A) A pan gets hot on a sto
    10·2 answers
  • Which of these has the most chemical energy?
    9·2 answers
  • Can animal cells be broken down further into a living unit
    10·2 answers
  • Therefore an answer in U.S. customary units, such as miles per hour would not be accepted as correct. A car traveling with const
    13·2 answers
  • What is the wavelength of a wave traveling with a wave speed of 1348 m/s
    10·1 answer
  • Question 2 (ID=81813)
    9·2 answers
  • Calculate the lateral displacement of a ray of light incident at an angle of 30o on a parallel – sided block of glass of thickne
    12·1 answer
  • A 36.3 kg cart has a velocity of 3 m/s. How much kinetic energy does the object have?
    5·1 answer
  • Which transformation will map figure L onto figure L'? (1 point) Two congruent triangles Figure L and Figure L prime are drawn o
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!