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
fomenos
3 years ago
14

If a 2-kg ball is thrown through the air at 20 m/s what is the momentum of the ball?

Physics
1 answer:
pogonyaev3 years ago
4 0
40 is the momentum (:
You might be interested in
A rope horizontally pulls a massive object lying on a surface with friction with a constant
SVEN [57.7K]

Answer:

Equal to the frictional force

Explanation:

<u>Question</u>; The options given with regards to a similar question posted online are;

A. Equal (equivalent) to the frictional force

B. Larger than the frictional force

C. Equal to the object's weight

D. More than the object's weight

Explanation

According to Newton's first law of motion, every object shall remain at rest or continue moving with uniform (constant speed) motion unless there is a net force acting on the object

Given that the velocity of the massive block, lying on the surface that has friction, being pulled by the rope = Constant

Therefore;

The net force acting on the moving block while being pulled by the rope = 0

From which we have;

The pulling force = The resistive force

Where;

The pulling force = The (pulling) force (applied) on the rope

The resistive force = The frictional force of the surface which tends to prevent the motion of the block

Therefore, given that the net force acting on the block = 0

The force on the rope = The frictional force (of the surface)

The correct option is option A. Equal to the frictional force.

5 0
3 years ago
ميل الجسم الى مقاومة التغير في حالته الساكنه أو الحركية يسمى ؟
Andrew [12]
CBC CB mhmgsbb in dish shack cans San gas cut TV an he’s EB bc be an NBA eh ouch ah bd so he eh bc does Deb chi
7 0
3 years ago
Read 2 more answers
Create a following distance greater than 3 seconds ahead when_______. a driver behind you is trying to pass you are not in a hur
Shtirlitz [24]

Answer:

option (a)

Explanation:

Maintaining distance while driving in traffic can avoid the chances of an accident.                        

When the driver is behind you is trying to pass you to avoid the collision you should maintain a distance greater than 3 sec.

Hence, option (a) is correct.

 

6 0
3 years ago
Which two factors does the power of a machine depend on? А. work and distance B.. force and distance C. work and time D. time an
Ivahew [28]

Hello There!

AnimeVines is here!

The answer is...

C. Work and time.

HopeThisHelps!!

AnimeVines

6 0
3 years ago
You and your friend Peter are putting new shingles on a roof pitched at 21∘. You're sitting on the very top of the roof when Pet
Marat540 [252]

Answer:

3.69 m/s

Explanation:

Forces :

mgsin Θ - mumgcosΘ = ma  

g x sinΘ  - mu x g x cosΘ  = a

9.8 x sin 21 - 0.53 x 9.8 x cos 21 = a

a = -1.337 m/s²

so you have final velocity = 0 m/s

initial velocity = ? m/s

Given d = 5.1 m

By kinematics

vf² = vo² + 2ad

0 = vo² + 2 x -1.337*5.1

vo = 3.69 m/s

8 0
3 years ago
Other questions:
  • The mass of a star can be determined by studying ___.
    11·2 answers
  • How does a smoother surface affect braking distance
    8·1 answer
  • When a car’s velocity is negative and its acceleration is negative, what is happening to the car’s motion?
    7·1 answer
  • How many significant figures are there in the number<br> 2.3409500?
    13·1 answer
  • What is an alloy?
    11·1 answer
  • 4. Un móvil lleva una velocidad de 75 m/s, en dicho momento aplica los frenos durante tiempo de 15 segundos hasta detenerse. ¿cu
    9·1 answer
  • If a man bought 1000N of potatoes in Russia and sold it in Africa for the same price, will he be in profit or loss? Explain your
    7·2 answers
  • Question 18 (2 points)
    5·1 answer
  • I was walking down the street and collapsed. My heart was racing and I struggled with
    11·1 answer
  • How can we make a non-luminous object luminous?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!