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

Author Question: A 2.0 kg mass is moving along the x-axis. The potential energy curve as a function of position is ... (Read 77 times)

c0205847

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
A 2.0 kg mass is moving along the x-axis. The potential energy curve as a function of position is shown in the figure. The kinetic energy of the object at the origin is 12 J. The system is conservative, and there is no friction.
 
  (a) What will be the kinetic energy at 2.0 m along the +x-axis?
  (b) What will be the speed of the object at 6.0 m along the +x-axis?
  What will be an ideal response?

Question 2

A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the figure. The vertical height above ground level at position A is 200 m. Neglect friction.
 
  (a) What is the total mechanical energy of the roller coaster at point A?
  (b) What is the total mechanical energy of the roller coaster at point B?
  (c) What is the speed of the roller coaster at point B?
  (d) What is the speed of the roller coaster at point C?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jaygar71

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: (a) 24 J (b) 2.2 m/s

Answer to Question 2

Answer: (a) 1.73  105 J (b) 1.73  105 J (c) 65.7 m/s (d) 34.4 m/s


c0205847

  • Member
  • Posts: 531
Reply 2 on: Jul 29, 2018
Wow, this really help

dreamfighter72

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Assessing Tracheal Position Assessing Tracheal Position
Incentive spirometry. A portable incentive spirometer is useful for encouraging patients to exercise Incentive spirometry. A portable incentive spirometer is useful for encouraging patients to exercise
Linear dose-response curve Linear dose-response curve
Sketch a graph of the function h(x), by hand on the following interval: Sketch a graph of the function h(x), by hand on the following interval:
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ... A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems, Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems,
Video: Interview with an Anorexic Woman (Part 2 of 2)

For a complete list of videos, visit our video library