HELP! concepts in free fall

1. Sep 28, 2008

garva1

HELP! PLEASE concepts in free fall

an object is thrown upwards, at the top of the path it has
a) zero acceleration
b) maximum momentum
c) maximum kE
d) is at equillibrium
e)none of the above

i know accelarion is 9.8m/s^2
i also know is not KE since at the top is potential
im confused of the other two

Last edited: Sep 28, 2008
2. Sep 28, 2008

gabbagabbahey

(b) momentum is $$p=mv$$ what is $$v$$ at the top of the path?

(d)if an object is in equilibrium, then the net force on it will be zero....is the net force on this object zero?

3. Sep 28, 2008

garva1

the question was just an statement askin what does free fall have at the highest point on top of the path