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Why on lifting one kilogram of iron or one kilogram of feather irons appears heavier?
Wiki User
∙ 14y ago
The answer is two fold: Real and Psychological.
The Real part is explained by the relationship between mass and force. When you lift anything up what you feel is the force it exerts on your system (your hand for example) and not the weight.
1kg or iron exerts more unit force on your hand because its mass is concentrated in smaller area. On the other hand, 1kg of feather has its mass distributed over a wider area and therefore exerts a smaller unit force. It therefore genuinely feels lighter.
The psychological bit is that we automatically expect something big to weigh more than and item far smaller than it. Of course it won't be if they are the same weight. Your perception therefore is that if "feels" lighter.
Wiki User
∙ 14y ago
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Don't lift anything heavier than a fork. Symbiosis Online Publishing Symbiosis Online Publishing
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No, you have to have a steady weight loss plan. You shoul start small, and work your way up.
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