Paul throws a baseball onto the field. The baseball leaves Paul’s hand with an initial upward velocity of 15 meters per second. If the baseball is 1 meter off the ground when it leaves Paul’s hand, about how long will it take for the baseball to hit the ground? Round your answer to the nearest tenth.

Question

anonymous · Answer

s = -1, u = 15, t = ?, a = -9.8 m/s/s
s = ut + 0.5 at^2
-1 = 15t + 4.9t^2
4.9t^2 + 15t + 1 = 0
solve for t

anonymous · Answer

sorry - typo \
equation should be
4.9t^2 - 15t - 1 = 0

anonymous · Answer

t = 3.1 secs to nearest tenth second

anonymous · Answer

r u there cherry?

anonymous · Answer

hello!!