Flag Mechanics> A certain particle has a weight of 20 N a...
question mark

A certain particle has a weight of 20 N at a point where the acceleration due to gravity is 9.8 m/s2. (a) What are the weight and mass of the particle at a point where the acceleration due to gravity is 4.9 m/s2? (b) What are the weight and mass of the particle if it is moved to a point in space where the gravitational force is zero?

joshua , 5 Years ago
Grade 12th pass
anser 3 Answers
Bishu Raj

Last Activity: 5 Years ago

given 
W = 20N 
We know W =ma
               20=m9.8
                m=  100/49 
a) now if g=4.9,then
               W=ma 
                W=(100/49)*4.9
                 W=10N
 
b)  if g=0 then Weight of particle is also 0
    but mass will not change
           

Vikas TU

Last Activity: 5 Years ago

 
Dear student 
The explanation for second part :
The weight of an object is a force. It is the force with which a body is attracted toward Earth or another celestial body. This means that when you are in space, away from Earth, objects do not weight anything since they do not feel gravitational attraction to the Earth.
What objects have though in space is mass. This is because mass is defined as the amount of material an object contains, and that doesn't change whether the object is on Earth, on the Moon, or anywhere in space

Advik

Last Activity: 3 Years ago

W=m*g
20N=m*10
20/10=m
m=2kg
a) now g=5m\s
    W=m*g
    W=2*5
    W=10N
    And mass remains tha same =2kg  
B) when g =0
     Mass remains same=2kg
     W=m*g
     W=2*0
     Weight=0

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...