Posted by admin | Posted in Uncategorized | Posted on 02-12-2007
Tags: banzai cannonball splash, cannonball splash, cannonball splash pool, cannonball splash sound effect, cannonball splash water slide, cannonball splash water slide with pool, dvd, mass, measurement, mp3404, nanotechnology, physics, pools, swimming
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 BANZAI INFLATABLE CANNONBALL SPLASH WATER SLIDE; NEW US $49.99
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Physics Help Please!?
A cannon mounted on a pirate ship fires a cannonball at 125 m/s horizontally, at a height of 17.5 m above the ocean surface. Ignore air resistance. (a) How much time elapses until it splashes into the water? (b) How far from the ship does it land?
vertical motion
s = ut + 0.5 * 9.81 * t^2
17.5 = 0 + 0.5 * 9.81 * t^2
t = 1.89 s ----answer
note: vertical component u=0
d = 125 * t
d = 125 * 1.89= 236.25 m ---answer
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