This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 3.0-kg object moving in the positive x direction has a one-dimensional elastic collision with a ... (Read 108 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
on: Jul 28, 2018
A 3.0-kg object moving in the positive x direction has a one-dimensional elastic collision with a 5.0-kg object initially at rest. After the collision the 5.0-kg object has a velocity of 6.0 m/s in the positive x direction. What was the initial speed of the 3.0 kg object?
 a. 6.0 m/s
  b. 7.0 m/s
  c. 4.5 m/s
  d. 8.0 m/s
  e. 5.5 m/s

Question 2

A 1.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string horizontal. At the lowest point in its swing when it is moving horizontally, the ball collides elastically with a 2.0-kg block initially at rest on a horizontal frictionless surface. What is the speed of the block just after the collision?
 a. 2.3 m/s
  b. 4.7 m/s
  c. 3.5 m/s
  d. 3.0 m/s
  e. 7.0 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zenzy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


asmith134

  • Member
  • Posts: 576
Reply 2 on: Jul 28, 2018
Wow, this really help

Dnite

  • Member
  • Posts: 297
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Direction of Pattern of Abdominal Percussion Direction of Pattern of Abdominal Percussion
Correct position when lifting a heavy object off the floor. Correct position when lifting a heavy object off the floor.
Structural MRI can be used to provide three-dimensional images of the entire brain. (Courtesy of ... Structural MRI can be used to provide three-dimensional images of the entire brain. (Courtesy of ...
These photos show a rat burying a test object from which it has just received a single mild shock. These photos show a rat burying a test object from which it has just received a single mild shock.
Gradient Flow:Upper air moving from areas of higher pressure to areas of lower pressure undergo ... Gradient Flow:Upper air moving from areas of higher pressure to areas of lower pressure undergo ...
Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ... Add movement to skin lifting by gently pulling it in a certain direction (e.g., up and forward) to ...
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library