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
Doss [256]
3 years ago
8

Two 10 kg pucks head straight towards each other with velocities of 10 m/s and -20 m/s. They collide and stick together. Calcula

te the resulting velocity.
Physics
1 answer:
RUDIKE [14]3 years ago
8 0

The final velocity of the two pucks is -5 m/s

Explanation:

We can solve the problem by using the law of conservation of momentum.

In fact, in absence of external force, the total momentum of the two pucks before and after the collision must be conserved - so we can write:

m_1 u_1 + m_2 u_2 = (m_1 +m_2)v

where

m_1 = m_2 = m = 10 kg is the mass of each puck

u_1 = 10 m/s is the initial velocity of the 1st puck

u_2 = -20 m/s is the initial velocity of the 2nd puck

v is the final velocity of the two pucks sticking together

Re-arranging the equation and solving for v, we find:

mu_1 + mu_2 = (m+m)v\\u_1 + u_2 = 2v\\v=\frac{u_1+u_2}{2}=\frac{10-20}{2}=-5 m/s

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

You might be interested in
21
sergeinik [125]
Distance between the centers of the two objects are the second object
5 0
2 years ago
A hydrogen atom is in its ground state when its orbital electron:
Harlamova29_29 [7]
It is in its ground state when its orbital electron is at its lowest energy amount. 
8 0
3 years ago
4. What is the acceleration of a rock if the net
HACTEHA [7]

Answer:

0.75 m/s²

Explanation:

Newton's second law:

∑F = ma

3 N = (4 kg) a

a = 0.75 m/s²

8 0
4 years ago
Best for growing most plants, which soil has good drainage and sufficient moisture?
hammer [34]
The correct answer is "loam".
5 0
3 years ago
Read 2 more answers
Which one of the following acid-base imbalances? Arterial blood gas levels are obtained from the client. If the client’s results
nekit [7.7K]

Answer:

Explanation:

The correct answer is Metabolic alkalosis (D). A pH of 7.48 shows slight alkalinity, this normal concentration of Co2 in the blood ranges from 35 mmHg (millimetre Mercury) to 45 mmHg and the normal HCo3 ( Hydrogen trioxo carbonate ion) concentration ranges from 22mEq/L to 26mEq/L.

Therefor the patients pH level is high the Co2 level is normal and the HCo3 level is high. Hence, Metabolic alkalosis

7 0
3 years ago
Other questions:
  • Why wheat flour is usually passed near magnet near a magnet before being packed
    8·1 answer
  • What is a Light Year?
    13·1 answer
  • SORRY! COULDN'T EDIT MORE INFO ON MY LAST QUESTION! RE ASKING
    12·1 answer
  • What are the fundamental units used in physics? ​
    9·1 answer
  • When heat is added to a substance, describe how the molecules are affected. Use the words kinetic energy and potential energy ap
    7·1 answer
  • Will mark the brainiest
    13·2 answers
  • Is the normal force equivalent to the weight of an object?
    13·1 answer
  • A boiler is being used to heat water. The graph shows the temperature of
    11·1 answer
  • Explain how sound is being produced from this 'Stomp' group.
    12·1 answer
  • Something that accelerates undergoes a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!