how to find vertical component of velocity if only given constant speed and time?

Question

stormfire1 · Answer

Well, unless the problem gives more information then you can't.  You can however infer things from the wording of the problem.  

For example, if the problem is talking about a moving train, the vertical component of velocity would be 0 since the train isn't moving vertically.

anonymous · Answer

heres the problem, maybe im not seeing something : A crow is flying horizontally with a constant speed of 2.60 m/s when it releases a clam from its beak. The clam lands on the rocky beach 1.80 s later. Consider the moment just before the clam lands. (Neglect air resistance.)  What is its vertical component of velocity?

stormfire1 · Answer

Initially:
Vx = 2.60 m/s
Vy = 0 m/s
acceleration (constant and down) = -9.8 m/s ^2
delta T = 1.80s

For constant acceleration:
Vf = Vi + at

So for vertical directoin:
Vf = 0 m/s -9.8 m/s * 2.80s
Vf = -17.64 m/s (negative meaning a downward direction)

stormfire1 · Answer

err...I typed  2.80s but meant 1.80s.  However, the answer is still correct.

anonymous · Answer

awesome thanks a lot

stormfire1 · Answer

No problem, good luck :)