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
notsponge [240]
3 years ago
10

A 2.3 kg cart is rolling across a frictionless, horizontal track towards a 1.5 kg cart that is initially held at rest. The carts

are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain instant before the carts collide, the first cart's velocity is +4.9 m/s and the second cart's velocity is -1.9 m/s. a) What is the total momentum of the system of the two carts at this instant? b) What was the velocity of the first cart when the second cart was still at rest?
Physics
1 answer:
Inga [223]3 years ago
8 0

Answer:

total momentum = 8.42 kgm/s

velocity of the first cart is 3.660 m/s

Explanation:

Given data

mass m1 = 2.3 kg

mass m2 = 1.5 kg

final velocity V2 = 4.9 m/s

final velocity V3 = - 1.9 m/s

to find out

total momentum  and velocity of the first cart

solution

we know mass and final velocty

and initial velocity of second cart V1 = 0

so now we can calculate total momentum that is m1 v2 + m2 v2

total momentum =  2.3 ×4.9 + 1.5 ×(-1.9)

total momentum = 8.42 kgm/s

and

conservation of momentum  is

m1 V + m2 v1  = m1 v2  + m2 v3

put all value and find V

2.3 V + 1.5 ( 0) = 2.3 ( 4.9 ) + 1.5 ( -1.9)

V = 8.42 / 2.3

V = 3.660 m/s

so velocity of the first cart is 3.660 m/s

You might be interested in
How can you tell that this is a combustion reactionn
d1i1m1o1n [39]

Answer:

May form in water carbon dioxide and other forms

Explanation:I hope I got this right don’t hate me if I mess up

6 0
3 years ago
1) For a positive point charge, the lines radiate ………. . While, for a negative point charge, the lines converge …………. .
ch4aika [34]

Answer:

For a positive point charge, the lines radiate <u>outwards</u>, while for a negative point charge, the lines converge<u> inwards.</u>

Explanation:

A single point charges produces an electric field which has a radial shape.The sign of a charge determines the the direction of the field. In Positive charge have the direction of field is out of the charge and for negative charge, the direction of field is towards the charge.This behavior is in relation to how a positive test charge will experience in a field.

5 0
3 years ago
Neo and Morpheus's masses have gained a velocity (not equal to zero) which means their momentum is now _____ .
Arte-miy333 [17]
<span>Neo and Morpheus's masses have gained a velocity (not equal to zero) which means their momentum is now based on gravity and friction alone.</span>
6 0
3 years ago
Read 2 more answers
How could you create an investigation to determine the pitch of this wave?
Musya8 [376]

Answer:

In order to make a sound wave have a higher pitch you increase the frequency.

In order to increase the volume of a sound wave, you have to increase the amplitude.

Hope this helps!

6 0
3 years ago
Which two optical devices use convex lenses to focus and enlarge images?
Andreas93 [3]
It is a reflecting telescope and a compound microscope. I know this for sure
4 0
3 years ago
Other questions:
  • A hole is drilled to the center of the earth and a ball is dropped into it. When the ball is at the earth's center, compared wit
    12·1 answer
  • Which terrestrial planet would have its surface temperature the most dramatically changed if its greenhouse gases were removed f
    6·1 answer
  • The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. The volcano was o
    7·1 answer
  • A longitudinal wave is observed. Exactly 6 crests are observed
    15·1 answer
  • A 49.5-turn circular coil of radius 5.10 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0
    15·1 answer
  • When do the heavier elements finally form? Give a few example.
    12·1 answer
  • It is cold and dry outside. You go down the slide and experience a small electric shock. What charge must you and slide be in or
    11·2 answers
  • A golf ball is sitting on a tee. The ball is struck with a golf club and flies
    15·2 answers
  • Which will reduce the possible environmental damage associated with mining uranium?
    13·1 answer
  • Write with all the steps and formulas and drawing if needed.​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!