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

Author Question: An object of mass 2.00 kg is held at a position A, a vertical height of 20.0 m above the ground. ... (Read 182 times)

meagbuch

  • Hero Member
  • *****
  • Posts: 568
An object of mass 2.00 kg is held at a position A, a vertical height of 20.0 m above the ground. Point B is 8.00 m directly below A. Neglect air resistance and use g = 10.0 m/s2.
 
  (a) What is the speed of the object at position B when it falls from position A? (b) What is the speed of the object just before it touches the ground? (c) What is the ratio of the total energy of the object at position A to position B?

Question 2

(a) A force of 15 N applied to a spring compresses it by 4 cm. What is the potential energy of the spring in the compressed position?
 
  (b) A force of 15 N applied to a spring stretches it by 4 cm. What is the potential energy of the spring in the stretched position?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mammy1697

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

(a) 12.6 m/s
(b) 20.0 m/s
(c) 1:1

Answer to Question 2

(a) 0.3 J
(b) 0.3 J




meagbuch

  • Member
  • Posts: 568
Reply 2 on: Jul 29, 2018
:D TYSM


anyusername12131

  • Member
  • Posts: 327
Reply 3 on: Yesterday
Excellent

 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

For a complete list of videos, visit our video library