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

Author Question: The only force acting on an object moving along the x-axis is the conservative force given by F(x) = ... (Read 392 times)

dalyningkenk

  • Hero Member
  • *****
  • Posts: 598
The only force acting on an object moving along the x-axis is the conservative force given by F(x) = (2.00 N/m)x + (1.00 N/m3)x3.
 
  (a) What is the change in potential energy when the object moves from x = 1.00 m to x = 2.00 m?
  (b) What is the change in kinetic energy when the object moves from x = 1.00 m to x = 2.00 m?
  What will be an ideal response?

Question 2

A 1.37-kg block is held in place against the spring by a 74-N horizontal external force (see the figure).
 
  The external force is removed, and the block is projected with a velocity v1 = 1.2 m/s upon separation from the spring. The block descends a ramp and has a velocity at the bottom. The track is frictionless between points A and B. The block enters a rough section at B, extending to E. The coefficient of kinetic friction over this section is 0.24. The velocity of the block is at C. The block moves on to D, where it stops. The initial compression of the spring is closest to
 
  A) 2.7 cm.
  B) 1.4 cm.
  C) 0.96 cm.
  D) 5.3 cm.
  E) 3.6 cm.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lcapri7

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

Answer: (a) -6.75 J (b) 6.75 J

Answer to Question 2

Answer: A




dalyningkenk

  • Member
  • Posts: 598
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

For a complete list of videos, visit our video library