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 56 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
Gracias!

ecabral0

  • Member
  • Posts: 310
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Posteroanterior direction Posteroanterior direction
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 ...
Lightly squeeze along each finger applying pressure first near the knuckle and then moving along the ... Lightly squeeze along each finger applying pressure first near the knuckle and then moving along the ...
Apply lotion to the entire hand and arm, moving up the arm from hand to shoulder. Use moderate ... Apply lotion to the entire hand and arm, moving up the arm from hand to shoulder. Use moderate ...
Positive and Negative Reinforcement Positive and Negative Reinforcement
A three-dimensional model of transfer RNA A three-dimensional model of transfer RNA
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library