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

Author Question: On Mars, the acceleration due to gravity is 8 m/s/s. If an object is dropped over the surface of ... (Read 53 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Jul 29, 2018
On Mars, the acceleration due to gravity is 8 m/s/s. If an object is dropped over the surface of Mars, how fast will it be moving at the end of 3 seconds of fall?
 
  A) 32 m/s B) 72 m/s C) 16 m/s D) 24 m/s E) 8 m/s

Question 2

Work is done on an object when you lift it against gravity. How does this work relate to gravitational potential energy? If the lifted object is dropped, what becomes of this energy?
 
  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

missalyssa26

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

Answer: The work you do on the lifted object may be stored as gravitational potential energy. Then force  distance = weight  height. If the lifted object is dropped, this energy transforms to motion energykinetic energy. The kinetic energy it possesses as it returns to its initial position equals the gravitational potential energy at its highest point, which equals the initial work done.


mwit1967

  • Hero Member
  • *****
  • Posts: 501
Reply #2 on: Jul 29, 2018
TY


missalyssa26

  • Sr. Member
  • ****
  • Posts: 327
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

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?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Evidence of Water on Mars Evidence of Water on Mars
A rubber mallet used to deliver a force to an object without harming the surface. A rubber mallet used to deliver a force to an object without harming the surface.
Imaging cell surface glycoproteins in living cells Imaging cell surface glycoproteins in living cells
Bone Surface Markings: Head Bone Surface Markings: Head
A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ... A satellite that is in a circular orbit 230 km above the surface of the planet Zeeman-474 has ...
Video: Global warming and its effect on climate change

For a complete list of videos, visit our video library