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 52 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
Gracias!

JaynaD87

  • Member
  • Posts: 368
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin
How to horizontally shift a sinusoidal function (y=a*sin⁡b(x−c)+d) How to horizontally shift a sinusoidal function (y=a*sin⁡b(x−c)+d)
Energy passes among trophic levels Energy passes among trophic levels
Write equation for each function Write equation for each function
Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that
Sketch the graph of each function using transformations. State the domain and range. Sketch the graph of each function using transformations. State the domain and range.
Video: baroreceptors

For a complete list of videos, visit our video library