Negative value for what? Normally, I make upwards positive.
g will be negative (downwards)
initial velocity is positive (upwards).
General question- when do you use NEGATIVE for 9.8m/s^2?
Even when the questions says "an object is thrown up in the air from top of the building, on its way down, it misses the building and falls to the ground below."
If you do use a negative value, why is that?
2 answers
It is because g oppose acceleration meaning that it becoms negative acceleration
1 answer