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
posledela
3 years ago
13

A boy weighs 40 kilograms. He runs at a velocity of 4 meters per second north. Which is his momentum?

Physics
2 answers:
Andrei [34K]3 years ago
5 0

Answer:

160 kilogram meters per second north

Explanation:

Bogdan [553]3 years ago
4 0
The boy's momentum is 160 kg*m/s north.

The formula of momentum is p = mv, where p is momentum.
p = 40 kg * 4m/s north
p =160 kg*m/s north

<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.</span>


You might be interested in
The average speed of a nitrogen molecule in air is about 6.70×102 m/s, and its mass is 4.68×10-26 kg.
Otrada [13]

Answer:

a)   a = 3.06 10¹⁵ m / s , b)    F= 1.43  10⁻¹⁰ N, c)    F_total = 14.32 10⁻²⁶ N

Explanation:

This exercise will average solve using the moment relationship.

a ) let's use the relationship between momentum and momentum

          I = ∫ F dt = Δp

          F t = m v_{f} - m v₀

          F = m (v_{f} -v₀o) / t

 in the exercise indicates that the speed module is the same, but in the opposite direction

          F = m (-2v) / t

if we use Newton's second law

          F = m a

we substitute

            - 2 mv / t = m a

            a = - 2 v / t

let's calculate

            a = - 2 4.59 10²/3 10⁻¹³

            a = 3.06 10¹⁵ m / s

b)      F= m a

        F= 4.68 10⁻²⁶ 3.06 10¹⁵

        F= 1.43  10⁻¹⁰ N

c) if we hit the wall for 1015 each exerts a force F

            F_total = n F

            F_total = n m a

            F_total = 10¹⁵  4.68 10⁻²⁶ 3.06 10¹⁵

            F_total = 14.32 10⁻²⁶ N

8 0
3 years ago
What roles do the musk ox play in the tundra ecosystem? (Select all that apply.)
docker41 [41]

Answer:

it's pray hoped this helped

3 0
3 years ago
Read 2 more answers
How does the force of gravity and the force of earth contribute to africa's poverty?
ivanzaharov [21]

Answer:

The force of gravity is not the same as being on the earth. when your on the earth there no gravitational pull its all up to the air

Explanation:

No explanation

8 0
3 years ago
Can the big bang's sound still be heard?
AleksandrR [38]
There is no sound in space because there is no medium to move it. However i think the big bang can still been seen in the form of background radiation but i am unsure. 
4 0
3 years ago
What is the instantaneous speed at 5 seconds? (remember s=d/t)
TEA [102]
5 seconds is a poor time to ask about, because the speed abruptly changes at exactly 5 seconds.

Up until that time, the speed has been 1 m/s. And then, at exactly 5 seconds, it becomes zero.
_________

It's also a poor question because speed is calculated from the distance covered, but the graph shows displacement, not distance. You can't really tell the distance covered from a displacement graph. For example, if an object happens to be moving in a circle around the place where it started, then the total distance covered keeps increasing, but its displacement is constant.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Two identical cylindrical vessels with their bases at the same level each contain a liquid of density 1.23 g/cm3. The area of ea
    13·1 answer
  • What traction of the radioisotope<br>remains in the body after one day?​
    7·1 answer
  • Nuclear fusion occurs when a heavy element decays to a lighter one hydrogen nuclei divide a helium atom splits atomic nuclei joi
    8·1 answer
  • Suggest three properties which magnesium chloride has because it is an ionic compound
    6·1 answer
  • A cart is propelled over an xy plane with acceleration compo- nents ax 4.0 m/s2 and ay 2.0 m/s2. Its initial velocity has com- p
    11·1 answer
  • If speed is measured in meters per seconds (m/s) and time is measured in seconds, the SI unit of acceleration is m/s2. Imagine y
    6·1 answer
  • A car of mass 2000 kg is thrusted forward with an engine force of 2000 N and a total frictional
    12·1 answer
  • If you know any of them, please help!!!!!!
    10·1 answer
  • Why can we hear sound around a corner but not see light
    6·1 answer
  • Acceleration is positive when you are speeding up.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!