2007-09-05 03:02:09 · 19 answers · asked by Anonymous in Science & Mathematics ➔ Physics
on earth....
F = m x a ---> W = m x g
W = 2 kg x 9.8 m/s^2 = 19.6 kgm/s^2 = 19.6 N
19.6 N x (.22481 lbf/ 1 N ) = 4.4 lbf
fyi
F = force, m = mass, a = acceleration, W = weight, g = acceleration due to gravity, N = newtons, lbf = lbs of force (the lbs you see on a scale).
********** JOHN Piranha fish *********
not sure what your refering to but if an object has a mass of 2 kg it has a mass of 2 kg. And mass and weight are not the same thing. an object can never "weigh" 2 kg. mass is the amount of mass/energy present and weight is a force.
2007-09-05 03:09:10 · answer #1 · answered by Dr W 7 · 1⤊ 1⤋
The weight of the object on the value of acceleration due to gravity, g, the object is subjected to.
Weight = m*g
For example, the value of g on earth is 9.8 m/s^2, so the weight of the object is 19.6 newtons (2*9.8). On the moon, g is 6 times smaller, so the weight would be 6 times less than on earth
2007-09-05 03:08:05 · answer #2 · answered by ruk 1 · 1⤊ 1⤋
Mel's backpack can carry 9 kilograms of mass. If each book he carries has a mass of 2 kg . What is the greatest number of books he can carry without going over the 9 kilograms
2016-04-13 14:39:54 · answer #3 · answered by Marisol 1 · 0⤊ 0⤋
This is quite a guess. Even Wikipedia has not yet a verified expert answer:
If under the same conditons, including especially time, place, and acceleraton during which you determined mass to be 2 kg, you concurrently determined weight, you will have found weight also to be 2 kg. ( I would also like to know if I am correct here.)
2007-09-05 03:19:03 · answer #4 · answered by Anonymous · 0⤊ 2⤋
Mass is constant, weight is based on gravity.
At the earth's surface, gravity is 9.8 meters / second ^2, so its weight would be 9.8 kg meters / second ^2, or 19.6 Newtons.
19.6 Newtonws = about 4.4 pounds.
2007-09-05 03:07:14 · answer #5 · answered by BZR 4 · 1⤊ 1⤋
It depends on the object's location. Near the surface of the Earth, it would weigh about 19.6 Newtons.
2007-09-05 03:04:27 · answer #6 · answered by ZikZak 6 · 3⤊ 1⤋
Acceleration due to gravity at sea-level on Earth is 9.8 m/sec²
F = ma
2 kg * 9.8 m/sec² = 19.6 N
Converting to British units for Americans:
19.6 N * 0.225 lb/N = 4.4 lb
2007-09-05 03:09:24 · answer #7 · answered by gebobs 6 · 0⤊ 1⤋
Weight(on the earth) = mass x gravity let g = 9.81m/s^2
= 2 x 9.81
= 19.6Newtons approx.
2007-09-05 03:12:14 · answer #8 · answered by naijagunner 4 · 0⤊ 1⤋
On earth, g= 9.8N/kg therefore it would have a weight of 19.6 Newtons
2007-09-05 03:06:55 · answer #9 · answered by Willy 3 · 0⤊ 1⤋
On earth in general,19.6 Newtons (Using g=9.8). On other planets it is different due to different values of g (acceleration due to gravity).
2007-09-05 03:13:09 · answer #10 · answered by ishaan 1 · 0⤊ 1⤋