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

Author Question: A 1.0-kg object moving 9.0 m/s collides with a 2.0-kg object moving 6.0 m/s in a direction that is ... (Read 141 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jul 28, 2018
A 1.0-kg object moving 9.0 m/s collides with a 2.0-kg object moving 6.0 m/s in a direction that is perpendicular to the initial direction of motion of the 1.0-kg object. The two masses remain together after the collision, and this composite object then collides with and sticks to a 3.0-kg object. After these collisions, the final composite (6.0-kg) object remains at rest. What was the speed of the 3.0-kg object before the collisions?
 a. 15 m/s
  b. 10 m/s
  c. 5.0 m/s
  d. 20 m/s
  e. 25 m/s

Question 2

A 5.0-g particle moving 60 m/s collides with a 2.0-g particle initially at rest. After the collision each of the particles has a velocity that is directed 30 from the original direction of motion of the 5.0-g particle. What is the speed of the 2.0-g particle after the collision?
 a. 72 m/s
  b. 87 m/s
  c. 79 m/s
  d. 94 m/s
  e. 67 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xMRAZ

  • Sr. Member
  • ****
  • Posts: 363
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


lak

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 28, 2018
Thanks


xMRAZ

  • Sr. Member
  • ****
  • Posts: 363
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Direction of Pattern of Abdominal Percussion Direction of Pattern of Abdominal Percussion
Range of Motion of the Temporomandibular Joint, Moving the Jaw From Side to Side Range of Motion of the Temporomandibular Joint, Moving the Jaw From Side to Side
Explaining “Moving Continents”— The Theory of Plate Tectonics Explaining “Moving Continents”— The Theory of Plate Tectonics
Doppler Effect, Observer Moving Doppler Effect, Observer Moving
Cross-fiber friction to the paraspinal muscles. Friction is created by moving the more superficial ... Cross-fiber friction to the paraspinal muscles. Friction is created by moving the more superficial ...
Object Oriented Systems Analysis and Design Object Oriented Systems Analysis and Design
Video: Aneurysm

For a complete list of videos, visit our video library