Gravity and Weight: How Do They Compare on Different Planets?

  • Thread starter Thread starter blackrose01
  • Start date Start date
  • Tags Tags
    Conceptual Weight
AI Thread Summary
The discussion focuses on comparing the weight of a 25kg object on Earth and Venus, where gravity is 8.8 m/s². The weight on Earth is calculated using the formula W = mg, resulting in a weight of 245 N. On Venus, the weight would be 220 N, indicating that Wvenus < Wearth. The angle of inclination and friction are mentioned but deemed irrelevant for the basic weight comparison. Understanding the relationship between gravity and weight is crucial for solving such problems.
blackrose01
Messages
3
Reaction score
0
"weight" problem (conceptual)

Homework Statement


an object has a mass of 25kg on Earth. If the same object is moved to an inclined plane in Venus, where the acceleration due to gravity is 8.8m/s^2, how does its weight compare to when it was still on earth??

a. Wvenus > Wearth
b. Wvenus = Wearth
c. Wvenus < Wearth
d. it depends on the angle of inclination of the inclined plane in venus
e. it depends on the friction between the plane and the object

Homework Equations


W = mg

The Attempt at a Solution


i'm not sure whether the angle of inclination is to be used here

i think it's C :p not sure though
 
Physics news on Phys.org


What do you think? :smile:
 


i think it's C...?
 


Why? :smile:
 


ok last time i got in trouble for just giving an answer so i'll try my best not to give it away here. How do gravity and weight relate? w=mg . . . so what happens to weight after you you change gravity (on Earth its 9.8 and on venus its different), how are they related to one another? :)
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top