a ballon is moving upward with velocity 5m/s.when it isat a height of 98m a packet is dropped from it.what is the velocity of packet when it strikes the ground.
vf^2=Vi^2+2ad
Vf^2=5^2+2*(-9.8)(-98)
negative signs are downward direction.
Vf^2=5^2+2*(-9.8)(-98)
negative signs are downward direction.