This topic contains a solution. Click here to go to the answer

Author Question: A solid steel ball is dropped from a great height and when its speed reaches 20 m/s its acceleration ... (Read 75 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
A solid steel ball is dropped from a great height and when its speed reaches 20 m/s its acceleration downward is 7.35 m/s2 . What would be the terminal velocity in this situation?
 a. 80 m/s
  c. 40 m/s
  b. 60 m/s
  d. 20 m/s

Question 2

A sphere is dropped from a great height and when its speed reaches 20 m/s, its acceleration downward is 8.4 m/s2 . If the drag force is proportional to the square of the speed, what will be its acceleration downward when its speed reached 40 m/s?
 a. 2.6 m/s2
  b. 4.2 m/s2
  c. 8.0 m/s2
  d. 0 m/s2 because it has now reached terminal velocity.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

huda

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

C

Answer to Question 2

B





 

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?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

For a complete list of videos, visit our video library