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
FromTheMoon [43]
4 years ago
6

A bullet with a mass of 0.00658 kg is fired through a 1.95 kg block of wood on a frictionless surface. The initial speed of the

bullet is 822 m/s, and the speed of the bullet after it exits the block is 439 m/s. At what speed does the block move after the bullet passes through it?
Physics
1 answer:
Svetradugi [14.3K]4 years ago
5 0

The final velocity of the block is 1.29 m/s

Explanation:

We can solve this problem by using the principle of conservation of momentum: in fact, the total momentum of the system must be conserved before and after the collision. Therefore, we can write:

p_i = p_f\\m_1 u_1 + m_2 u_2 = m_1 v_1 + m_2 v_2

where:

m_1 = 0.00658 kg is the mass of the bullet

u_1 = 822 m/s is the initial velocity of the bullet

v_1 = 439 m/s is the final velocity of the bullet

m_2 = 1.95 kg is the mass of the block

u_2 = 0 is the initial velocity of the block

v_2 is the final velocity of the block

Re-arranging the equation and solving for v2, we find:

v_2 = \frac{m_1 u_1 - m_1 v_1}{m_2}=\frac{(0.00658)(822)-(0.00658)(439)}{1.95}=1.29 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
Why is atomaspheric pressure greater at the surface on Earth
andrew-mc [135]
Hello!

Because as you get closer to the surface of the earth, the more air that is on top of you. At the top of the atmosphere, there is less air, and everything is a vacuum, where you have no weight. When you get close to the earth, the weight of the air builds until it when you're at the very lowest point of the earths surface, all the air in the atmosphere above you is pressing down.

Thank You!


5 0
3 years ago
Read 2 more answers
PLZ EXPLAIN IM SO CONFUSED AND THIS IS DUE TONIGHT. I WILL GIVE 50 POINTS!
bezimeni [28]

When you first pull back on the pendulum, and when you pull it back really high the Potential Energy is high and the Kinetic Energy is low, But when up let go, and it gets right around the middle, that's when the Potential energy transfers to Kinetic, at that point the kinetic Energy is high and the potential Energy is low. But when it comes back up at the end. The same thing will happen, the Potential Energy is high, and the Kinetic Energy is low. Through all of that the Mechanical Energy stays the same. 

I hope this helps. :)

Brainliest?

8 0
3 years ago
How could you increase the kinetic energy of a wagon without increasing it's mass
Zarrin [17]

Answer:

send the wagon down a higher hill

3 0
3 years ago
Read 2 more answers
Why is it important for scientist to do research?
sweet-ann [11.9K]

Answer:

Because if they dont research first they will be unprepared

Explanation:

3 0
3 years ago
Read 2 more answers
The time that an object takes to complete its orbit once around the sun
Naya [18.7K]

The farther away an object is from the Sun the slower it orbits around it. The closer an object is from the Sun the faster it orbits around it.

4 0
4 years ago
Other questions:
  • Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. He t
    7·2 answers
  • Which is one way that scientists communicate the results of an experiment?
    15·2 answers
  • Can anyone help me with any parts in question number 1: parallel circuit?
    6·1 answer
  • HELP!
    15·2 answers
  • The Earth moves in predicable patterns. One of these patterns causes the seasons as
    15·2 answers
  • What causes a ball rolling across the floor to slow down low of motion​
    15·1 answer
  • Which phrase describes an irregular galaxy?
    8·1 answer
  • A 15. 0 cm object is 12. 0 cm from a convex mirror that has a focal length of -6. 0 cm. What is the height of the image produced
    12·1 answer
  • Cold air masses tend to originate from: Question 3 options: tropical areas an area where it's wintertime an area where it's summ
    12·2 answers
  • A simple pendulum of length 1.5m has a bob of mass 2.0kg. State the formula for the period of small oscillations and evaluate it
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!