Homework Help: physics

Posted by jake on Sunday, March 14, 2010 at 8:57pm.

projectile motion question need help working through it

an airplane travelling 1001meters above the ocean at 125km/h is going to drop a box of supplies to shipwrecked victims below.

a) How many seconds before the plane is directly overhead should the box be dropped

b) what is the horizontal distance between the pane and the victims when the box is dropped?

physics - Damon, Sunday, March 14, 2010 at 9:19pm
LOL - answer b first.
The plane is going exactly as fast in the horizontal direction as the bomb. Therefore the plane is exactly over the bomb when it hits. When you drop a bomb, turn and bank after release.
physics - Damon, Sunday, March 14, 2010 at 9:21pm
Now for part a, how long does it take an object to fall 1001 meters?

distance = (1/2) g t^2
1001 = 4.9 t^2
solve for t

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