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 69 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
Excellent

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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.

The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h
Animal that offer potential medical uses Animal that offer potential medical uses
The energy budget The energy budget
Function, even or odd, solution Function, even or odd, solution
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia). Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia).
Video: Types of Burns

For a complete list of videos, visit our video library