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
Ivenika [448]
3 years ago
5

Starting at t = 0 s , a horizontal net force F⃗ =( 0.285 N/s )ti^+(-0.460 N/s2 )t2j^ is applied to a box that has an initial mom

entum p⃗ = ( -3.10 kg⋅m/s )i^+( 3.90 kg⋅m/s )j^ .
What is the momentum of the box at t = 1.90 s ?


Enter the x and y components of the momentum separated by a comma.
Physics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

Explanation:

We know that Impulse = force x time

impulse = change in momentum

change in momentum = force x time

Force F = .285 t -.46t²

Since force is variable

change in momentum = ∫ F dt  where F is force

= ∫ .285ti - .46t²j dt

= .285 t² / 2i - .46 t³ / 3 j

When t = 1.9

change in momentum = .285 x 1.9² /2 i  -  .46 x 1.9³ / 3 j

= .514i - 1.05 j

final momentum

= - 3.1 i + 3.9j +.514i - 1.05j

= - 2.586 i + 2.85j

x component = - 2.586

y component = 2.85

You might be interested in
A 1200 kg car accelerates from 13m/s to 17m/s. find the change in momentum of the car?
lisabon 2012 [21]

Answer:

4800

Explanation:

The change in velocity of the car is 17-13=4m/s. Since the change in momentum is the mass multiplied by the change in velocity, the answer is 4*1200=4800. Hope this helps!

6 0
3 years ago
If a proton were released in the electric field above, what direction would it move?
Afina-wow [57]

Answer:

d because the proton would move towards the negative plate

Explanation:

5 0
3 years ago
________ serve as the site for photosynthesis.
Amiraneli [1.4K]
The answer is going to be leaves.
6 0
3 years ago
Read 2 more answers
Do yhu kno the answer?​
Charra [1.4K]

Answer:

cjkdodhfodjshdijcjsnchisbdhdosjdhsijsjf

5 0
3 years ago
Read 2 more answers
A soccer ball is kicked 8 m north. Then a teammate kicks it 6 m east into the goal. What is the soccer ball’s displacement from
dimulka [17.4K]

Answer:

the displacement is zero and the distance is 100 meters

Explanation:

7 0
3 years ago
Other questions:
  • How have batteries gotten better over time?
    5·2 answers
  • What do nebulae have the most in common with?
    12·1 answer
  • List four ways of separate a mixture
    11·1 answer
  • Scientists earlier believed that the lowest measurable temperature is the freezing point of ice. However, modern scientists beli
    12·1 answer
  • What are 3 pros and cons of nuclear transmutation?
    6·2 answers
  • If you put a total of 8.05×106×106 electrons on an intially electrically neutral wire of length 1.03 m, what is the magnitude of
    14·1 answer
  • Planet Earth is called the blue planet because it has so much water. Water drives the weather on Earth. What is the energy sourc
    10·2 answers
  • What is the frequency of a mechanical wave that has a
    8·1 answer
  • Four satellites are in orbit around the Earth. The heights of their four orbits
    11·1 answer
  • HELP 30 POINTS
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!