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?
1
Expert's answer
2010-12-16T15:35:15-0500
The equation of the motion for the vertical projection of the velocity is: h= h0 +v0t +at2/2 where v0 = 0; h0 = 17.5 m, v0 = 0, a = -9.8 m/s2; a) 0 = 17.5 - 9.8t2/2 t = 1.89 s. b) the horizontal motion is constant with the velocity of 125 m/s, thus the distance would be S = Vt = 125*1.89 = 236.23 m/s.
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment