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

Author Question: A 3.0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6.0-kg mass ... (Read 306 times)

frankwu

  • Hero Member
  • *****
  • Posts: 549
on: Jul 28, 2018
A 3.0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6.0-kg mass initially at rest. After the collision, the speed of the 3.0-kg mass is 8.0 m/s, and its velocity vector makes an angle of 35 with the positive x axis. What is the magnitude of the velocity of the 6.0-kg mass after the collision?
 a. 2.2 m/s
  b. 2.9 m/s
  c. 4.2 m/s
  d. 3.5 m/s
  e. 4.7 m/s

Question 2

A 3.0-kg mass sliding on a frictionless surface explodes into three 1.0-kg masses. After the explosion the velocities of the three masses are: (1) 9.0 m/s, north; (2) 4.0 m/s, 30 south of west; and (3) 4.0 m/s, 30 south of east. What was the magnitude of the original velocity of the 3.0-kg mass?
 a. 1.7 m/s
  b. 1.0 m/s
  c. 1.3 m/s
  d. 2.0 m/s
  e. 2.8 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

A


frankwu

  • Member
  • Posts: 549
Reply 2 on: Jul 28, 2018
Excellent

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

An octopus moving between tide pools during low tide An octopus moving between tide pools during low tide
Direction of Pattern of Abdominal Percussion Direction of Pattern of Abdominal Percussion
Circumduction Circumduction–Moving a body part in a circular motion. Circumduction Circumduction–Moving a body part in a circular motion.
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ... Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ...
A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ... A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ...
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library