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
lara31 [8.8K]
2 years ago
14

A1.0 kg cart moving right at 5.0 -- on a frictionless track

Mathematics
1 answer:
bulgar [2K]2 years ago
6 0

Answer:

3.0 kg

Step-by-step explanation:

Momentum before collision = momentum after collision

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂

(1.0 kg) (5.0 m/s) + m (-2.0 m/s) = (1.0 kg) (-4.0 m/s) + m (1.0 m/s)

5.0 kg m/s + m (-2.0 m/s) = -4.0 kg m/s + m (1.0 m/s)

9.0 kg m/s = m (3.0 m/s)

m = 3.0 kg

You might be interested in
Q6. Solve
kati45 [8]

4x + 3y = 5...(1)
2x + 3y = 1...(2)

(2)*2:
4x+6y=2...(3)

(1)-(3):
4x+3y-(4x+6y)=5-2
4x+3y-4x-6y=3
-3y=3
y=-1

By sub. y=-1 in (2), we have
2x+3(-1)=1
2x-3=1
2x=4
x=2
The solution is x=2,y=-1
4 0
3 years ago
Read 2 more answers
Round 763.53 to the nearest hundred
FinnZ [79.3K]

Answer:763.5

Step-by-step explanation:

the 3 will make it stay the same

8 0
3 years ago
Read 2 more answers
Write a two column proof. If ZY=3XY, then ZX=4XY
Blababa [14]

Answer:

As you have written

Z Y  = 3 X Y,

It means X, Y, Z are collinear points i.e they lie in the same line or line segment.

Locating points X, Y,Z  on the line

Two possibilities are possible

1. First Z, then X and then Y on the line or line segment

→ Z X + Y X= Z Y

But Z Y = 3 X Y [ Given]

→  Z X + Y X = 3 X Y

→  Z X = 3 X Y -  Y X

→  Z X = 2 X Y ⇒ which is not the result.

2. 2nd Possibility

First Z, then Y and then X on the line or line segment

→ Z X  =  Z Y + Y X

→ Z X= 3 X Y + Y X  [Z Y=3 X Y→(given)]

→ Z X= 4 X Y , Which is the result.


5 0
3 years ago
True/False (4z + y) is the sum of two terms
frutty [35]
True. The answer is the product of 4 and a number plus another number. 
4 0
3 years ago
Read 2 more answers
yesterday kofi earned 50cedis mowing lawns. today kofi earned 60% of what he earned yesterday mowing lawns.How much did kofi ear
Korvikt [17]

Answer:

30 cedis

Step-by-step explanation:

todays earning = yesterdays earning * 60/100

50 * 60/100 =30

8 0
3 years ago
Other questions:
  • What's the answers to this question please?
    14·1 answer
  • Graph, y is less than or equal to 2x + 1
    6·1 answer
  • The area of a rectangle is 28 square miles. The length is 7 miles.
    8·2 answers
  • The width of a rectangle is 2 cm less than its length. the perimeter is 52 cm. the length is:
    5·1 answer
  • Find the lateral area the regular pyramid.<br><br> L.A.=
    15·1 answer
  • the table below shows a proportional relationship fill in the missing values servings 12 ,4 16 ,8 ounces 21 ? ? ? please help wi
    7·1 answer
  • If a 6-lb turkey takes 120 minutes to cook how long will 9-lb turkey take to cook
    8·1 answer
  • The table shows the pricing for four different types of apples. Which type costs the least per kilogram? Type: Cost:
    14·2 answers
  • Hi how r u nice to meet u hope your doing well bye
    8·1 answer
  • Inverse of f(x)=-2x-5/-4x+9
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!