Question

can force be negative and where would it be?

Answer 1

force can be negative when object opposes gravity

Answer 2

So force A must be acting downwards, not upwards. A 'negative' force is one that is acting in the direction opposite to what you decide to be the positive direction (Usually, upward is +ve, downward is -ve). If the object is accelerating, then the situation is different. A could be any value greater than -600N.

I Hope this is helpful for u..............

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