1. W = 1.6 m
2. Weight is directly proportional to mass
3. W = 4.9 m
4. They are the same
5. W = 9.8 m
6. Weight is inversely proportional to mass.
7. None of these
2007-02-22 15:33:54 · 10 answers · asked by davi921 2 in Science & Mathematics ➔ Physics
Since weight is the gravitational force (and is given by the product of your mass and the local gravitational accelleration, which on Earth is 9.81 m/s^2) and a force on a classical object of constant mass is directly proportional to the mass, the correct answer is 2. That is, F=ma (Newton's Second Law) and, in particular, a=g=9.81 m/s^2.
2007-02-22 15:42:48 · answer #1 · answered by linford86 2 · 2⤊ 0⤋
Weight is a force and mass is a scalar quantity.
Force = Mass X Acceleration
The acceleration cause by the earth's gravitational field (g) is 9.8 meters per second squared.
Weight = mg
Number 5 is correct if you are measuring weight on earth
2007-02-22 15:50:30 · answer #2 · answered by John L 2 · 0⤊ 2⤋
weight is a force that is developed from mass subject to an acceleration. Since we are subject to the earth's gravitational acceleration we exhibit a weight. F = Mass * Acceleration. An elephant would weigh the same as a human if floating in outerspace away from the earth's gravitational acceleration influence.
7 is the correct answer.
2007-02-22 15:45:30 · answer #3 · answered by Anopheles 1 · 0⤊ 1⤋
2. Weight is the force experienced by a mass in a gravitational field. Therefore weight is proportional to mass, by a factor of the acceleration due to gravity, 9.81m/s^2
2007-02-22 15:45:32 · answer #4 · answered by thom1102 2 · 2⤊ 0⤋
W=mass x force of gravity so your answer is directly proportional because as mass gets bigger so does weight.
2016-03-29 08:08:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It depends how picky your teacher is going to be. Weight is directly proportional to mass ON EARTH. If you go to the moon it'll change.
In other words, your weight is directly proportional to mass as long as the acceleration exerted is CONSTANT.
Since nowhere in the question does it say you're always on earth or that acceleration is constant the answer SHOULD be 7. If it's not then you should explain to your teacher why he/she is wrong. :)
Hope this helps.
2007-02-22 15:38:47 · answer #6 · answered by Ryan HG 2 · 0⤊ 0⤋
7- is the answer. Weight is mass related to gravity.
An object of a certain mass weighs something on earth and nothing in space where there is no gravity.
2007-02-22 15:39:37 · answer #7 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋
By the use of dimensional analysis, we can verify "weight" is not mass times the force of neg. gravitation (-9.80 m/s^2 on earth), weight is simply kilograms and pounds.
The FORCE of weight is mass times the neg. gravitation, as that causes Newtons.
(Newton = kilogram times meters per seconds squared)
(Casual weight dimensions are kilograms and pounds)
2007-02-22 21:16:37 · answer #8 · answered by cjtamago 1 · 0⤊ 0⤋
weight is equal to mass times gravity.
w = mg
2007-02-22 15:36:52 · answer #9 · answered by Bao Wow 3 · 0⤊ 0⤋
on earth, the answer is 5. since gravity is 9.8.
2007-02-22 15:36:46 · answer #10 · answered by eriq p 4 · 0⤊ 0⤋