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
Mkey [24]
1 year ago
8

A body of mass 80kg moving with a velocity of 6m/s hits a stationary body

Physics
1 answer:
Sauron [17]1 year ago
8 0

Answer:

4 m/s

Explanation:

Conservation of momentum ,  mv

Before collision  80 kg * 6 m/s  = 480  kg-m/s  

   after the collision,

         the momentum is the same but the mass is 80+40 kg =120 kg

 mv = 480

120 * v = 480

v = 4 m/s

You might be interested in
A sound travels down a hallway that is 115 m long. Then it echoes and
yan [13]

Answer:

0.66 s

Explanation:

∆x = v∆t → 2 × 115 = 350 ∆t → ∆t = 230/350 = 0.66 s

7 0
2 years ago
Why are strokes and Alzheimer's disease serious conditions? Select all that apply. You can die from either one.
Sladkaya [172]
The first and fourth option my dudette
.
Zane 
7 0
3 years ago
Read 2 more answers
Which of Newton's laws of motion describes the motion of an object that has a net<br> force of ON?
algol [13]

Newton's first and second laws of motion both do, but I think the one you're looking for is: <em>The First Law of Motion</em>.  That description is a little more direct.

It says that if an object is not acted on by a net external force, then it continues in "constant, uniform motion".

3 0
2 years ago
yellow cab taxi charges a $1.75 flat rate in addition to $0.65 per mile. kim has no more than $10 to spend on a ride. how many m
Nat2105 [25]

Answer:

you could go 12 miles paying $7.80 and $1.75

So in total being $9.55

5 0
2 years ago
You are designing a new home for a cold climate. You want one room in the house to be warmed by the Sun's energy. Which material
solniwko [45]

Answer:

glass if for a good view, but for absorbing heat concrete and brick is the best

Explanation:

wood is not a good idea bc it can cause fires from too much heat and it absorbs less heat but all of that depends on how good the material your using

8 0
3 years ago
Read 2 more answers
Other questions:
  • The Sun keeps all of the planets orbiting it because _____.
    5·2 answers
  • A disc initially at rest experiences an angular acceleration of 3.11 rad/s for a time of 15.0 s. What will the angular speed of
    13·1 answer
  • Assigned Media Question Help According to a random sample taken at 12​ A.M., body temperatures of healthy adults have a​ bell-sh
    5·1 answer
  • Suppose an object is in orbit around the earth, the earth's gravitational pull some how becomes stronger than the objects forwar
    11·1 answer
  • A 3.5 kg book is sitting at rest on a table. what is the value of the normal force being exerted by the table on the book?
    9·1 answer
  • The acceleration of a particle moving along a straight line is given by a = −kt2 m/s2 where k is a constant and time t is in sec
    8·1 answer
  • Help I need to know this answer!!
    11·1 answer
  • A gas has a volume of 1.5 L at 375 kPa.
    14·1 answer
  • AWARDING BRAINLIEST (~ ̄▽ ̄)~
    15·1 answer
  • Calculate the pressure on a man’s foot when a woman of mass 65 kg steps on his foot with her heel which has an area of 0.12m2 wi
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!