(A 40 kilogram barrel is rolled up a 10 meter long ramp to a height of 5 meters.) How much does the barrel weigh?
40 Kilograms right?? or if you can see any other way to figure out this problem please explain!! thanks!
2007-03-12 11:00:38 · 13 answers · asked by xJessa Gurlx 1 in Science & Mathematics ➔ Physics
Wow that is sneaky lol! I think it wants you to find the weight though so you need to convert it to pounds or something... but still a sneaky question!
2007-03-12 11:04:57 · answer #1 · answered by thesiphone 2 · 0⤊ 1⤋
YES, IT'S A TRICK QUESTION.
Weight is a force. 40 kilograms is a mass, not a force.
Weight is also known as the normal force acting on an object. So to find the normal force, take the mass of the object (the 40 kilogram barrel) and multiply it by the acceleration due to gravity on Earth (9.81 m/s^2).
2007-03-12 11:24:51 · answer #2 · answered by lexrunner 1 · 0⤊ 0⤋
Kilogram is a unit of mass not weight. That 40 kilogram barrel will be 40 kilograms whether on the earth, moon, or in space. Weight is relative to gravity (hence you weight more on earth than on the moon).
This is the only way i can see it to be a trick question.
2007-03-12 11:06:11 · answer #3 · answered by brentnsndr 1 · 0⤊ 0⤋
Kilogram is a unit for MASS not Weight but it's used to say for example:"a 40 kilogram barrel" instead of" a 40 kilogram force barrel".
Weight=Mass*Gravity
your barrel's mass and earth's gravity are consonant so the barrel's weight is.
2007-03-12 11:11:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
In physical terms 40 Kg is the mass of the barrel no its weight, the weight of an object depends on its mass and on the gravity acceleration (about 9.81 m/s on earth )
This is a simple trick question, its goal is obviously to distract your attention to the (non relevant ramp) if you are not sure of your information
The answer is w=m*g= 40*9*.81(on earth)=392.4 N (on earth)
2007-03-12 11:20:17 · answer #5 · answered by Anas 3 · 0⤊ 0⤋
weight is the force of gravity that acts on an object, measured in Newtons (or pounds, if you're using feet and inches). Kilograms is a measure of mass. And weight is given from mass by W = M*g, where g = 9.81 m/s^2
2007-03-12 11:04:13 · answer #6 · answered by G M 2 · 0⤊ 0⤋
Yes, but it asks for weight so convert that to pounds of newtons or something that measures weight. Google says that 40 kilograms = 88.1849049 pounds
2007-03-12 11:04:52 · answer #7 · answered by MLBfreek35 5 · 0⤊ 1⤋
If it was asked in imperial measure it would be the same number because pounds mass is defined by pounds force
The ones telling you to convert the kilograms to Newtons are correct. trust them.
2007-03-12 11:37:51 · answer #8 · answered by U-98 6 · 1⤊ 0⤋
misconception of weight and mass
its mass is 40kg not its weight
its weight on earth is mass * acceleration due to gravity which is 40*9.8= 392N
So you have been tricked. remember mass is measure in kilograms, grams, pounds, etc...and weight is measure in newtons!
2007-03-12 11:05:38 · answer #9 · answered by Oz 4 · 0⤊ 0⤋
if it says weight than yeah it would be 40kg, but maybe they mean how much energy if would take to push the barrel up the ramp?
* and by the way, kilograms measure mass so you should convert it to pounds
2007-03-12 11:05:05 · answer #10 · answered by Miss_Sunshine 4 · 1⤊ 4⤋
It is a trick question. Unless they take the barrle to the outer parts of the atmosphere, it should weigh the same.
2007-03-12 11:09:18 · answer #11 · answered by TJTB 7 · 0⤊ 0⤋