why is negative sign taken into cosideration when force is attractive?
Asked by jbathini | 26th Oct, 2009, 06:00: PM
It's a convention. Just like electric charges are of two different types, positive and negative. The positive and negative are merely labels to identify them apart. One could have used them interchageable and might have called the positive charge a negative charge.
Similarly forces are generally attractive/repulsive, push/pull type. So you can use a convention as the attractive force using a positive sign, then you have to manage all other convention such as potential energy convention for that force and so on.
Answered by | 27th Oct, 2009, 12:09: PM
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