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
iragen [17]
3 years ago
11

Ball B, with a mass of 30kg, is moving to the left at -10 m/s. With what velocity should Ball A, with a mass of 10 kg, move to t

he right and collide with B, so that Ball A rebounds with a velocity of -30 m/s, and Ball B with velocity of 10 m/s, after the collision? Assume the collision to be perfectly elastic.
Use the formula for perfect elasticity. m1v1(initial) + m2v2(initial) = m1v1(final) + m2v2(final) m1 = mass of object 1, m2 = mass of object 2 v1 = velocity of object 1, v2 = velocity of object 2
Mathematics
1 answer:
tangare [24]3 years ago
5 0
Initially, Ball A of 10 kg will have velocity x, while Ball B of 30 kg has velocity -10 m/s.
After collision, Ball A will have a velocity of -30 m/s, while Ball B will have velocity 10 m/s. We assume their masses do not change.
(10 kg)(x m/s) + (30 kg)(-10 m/s) = (10 kg)(-30 m/s) + (30 kg)(10 m/s)
10x - 300 = -300 + 300
x = 30 m/s (to the right)
You might be interested in
The distance from a to B is 42 feet. The slope of the roof is 24 feet. What is the height of the attic
Hoochie [10]

well... 42+24=66 so the height of the attic is 66 feet

8 0
3 years ago
How can i find the value of x
alukav5142 [94]

Your equation is correct.


x+3x+26+34=180\\\\4x+60=180\ \ \ |-60\\\\4x=120\ \ \ |:4\\\\\boxed{x=30}

6 0
3 years ago
Hi this is my last bits of points, i Have 10 take it or leave it
schepotkina [342]

Answer:

I am confusion

Step-by-step explanation:

7 0
3 years ago
A giant tortoise can walk about 1\10 meter per second on land. A cooter turtle can walk about 1\10 meter per second in land. How
VashaNatasha [74]
.1 meters/1 second = 5 meters/ x seconds
cross multiply
.1x= 5
solve for x, (divide 1 on both sides)
50 seconds= x
6 0
3 years ago
Read 2 more answers
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
aksik [14]

Answer:

6-2y

Step-by-step explanation:

when transposed

3x+6y=18 becomes

3x=18-6y

x=18-6y/3

x=6-2y

hope this helps

plz mark me brainliest

8 0
3 years ago
Other questions:
  • Two numbers add up to 102 and the first is 8 bigger than the second. What are the two numbers?
    5·2 answers
  • Need help, how do I do this?
    12·2 answers
  • Two consecutive even integers have the following property. When the smaller integer is added to three times the larger integer,
    8·1 answer
  • Please help me answer this
    6·1 answer
  • Which shows a way to take apart 7?
    13·2 answers
  • What is the value of x
    15·2 answers
  • HELP WILL GIVE BRANLIEST!
    8·1 answer
  • Determine the intercepts of the line
    12·1 answer
  • Without actually carrying out the steps of multiplication, determine whether the product of 15.1 and 0.9 will be larger or small
    8·2 answers
  • Which picture shows the inverse, f −1, of the function shown?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!