solve it with explanation plz
Answers
mass of object = 2.2 kg
weight of object = mass * acceleration due to gravity
= m*g
= 2.2 * 9.8
= 21.56 N
Answer:
Mass and Weight
What's the difference between MASS and WEIGHT, and why does it matter?
It matters because when doing science we try to avoid confusion by being as clear and accurate as possible when describing things. If someone gave you a ball and said "How long is the ball?", what would you think? You would probably wonder what they really meant. Did they mean how far is it around the ball, or did they mean how far is it across the ball, or maybe they meant how far can you throw the ball! That's why we have the words 'circumference' and 'diameter' so we can at least try and communicate without confusion!
In most cases in everyday life the difference between mass and weight isn't really important - a bag of sugar has a mass of 2 kg and we usually says it weighs 2 kg. But that isn't actually true, it doesn't weigh 2kg because weight is measured as a combination of the mass and the pull of gravity on that mass (the units are therefore not kilograms but Newtons - can you imagine why?). So, if you took that bag to the moon, it would still have a MASS of 2 KG but would WEIGH fewer newtons because the Moon's gravity is not as strong as the Earth's.
MASS is therefore a measure of how much material or matter there is in an object, and that doesn't normally change, but
WEIGHT is a measure of the effect gravity has on that mass, and so the weight of an object depends on where the object is when you 'weigh' it. It is calculated by multiplying the mass in kilograms by the force of gravity per kilogram.
On Earth a mass of 1 kg has a weight of approximately 10 newtons. As an experiment, next time you visit the local shops try asking for a 10 newton bag of apples and see if anyone knows what you are talking about!
Since it's not possible to take the Sun to a laboratory to 'weigh' it, it only makes sense to talk about the mass of the Sun - and actually all the other things to do with the Sun, from atoms to planets.
I hope it helps you
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