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

Author Question: In the figure, a 4.0-kg ball is on the end of a 1.6-m rope that is fixed at 0. The ball is held at ... (Read 101 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
In the figure, a 4.0-kg ball is on the end of a 1.6-m rope that is fixed at 0. The ball is held at point A, with the rope horizontal, and is given an initial downward velocity.
 
  The ball moves through three quarters of a circle with no friction and arrives at B, with the rope barely under tension. The initial velocity of the ball, at point A, is closest to
 
  A) 4.0 m/s
  B) 5.6 m/s
  C) 6.3 m/s
  D) 6.9 m/s
  E) 7.9 m/s

Question 2

In the figure, a very small toy race car of mass m is released from rest on the loop-the-loop track. If it is released at a height 2R above the floor, how high is it above the floor when it leaves the track, neglecting friction?
 
  A) 1.67 R
  B) 2.00 R
  C) 1.50 R
  D) 1.33 R
  E) 1.25 R



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Joc

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A




bobbysung

  • Member
  • Posts: 519
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

For a complete list of videos, visit our video library