Recent content by ash312

Homework Statement A student is determined to test the law of gravity for himself. He steps off a skyscraper 320m high, stopwatch in hand, and starts his free fall. Five seconds later, superman arrives at the scene and dives off the roof to save the student. What must superman's initial...

The guy runs at 7.60 m /s

Homework Statement A baseball player hits the ball straight up in the air with a velocity of 18.0m/s. As soon as the ball is hit, the runner on third base dashes toward the home plate. The distance between third base and home plate is 27.4m. Where will the runner be with reference to home...

LOL! yes She gets to survive! we saved her! Anyway Thanks a lot! i think i learned somthint here!

OMG! i made a careless mistake... i forogot to put in the 1 before 190.44...! :( ok then she stopped within 41.4 m. Which means she didnt fall over the bridge rihgt?

ok.. so, wats the answer? 19.6?

-19.6?

in that case i got 185.84

Ok, do i square root my answer? If i do then i got 13.6

If she stopped then it would be 0.

185.84? sorry it took so long... i didnt no the reply was in the second page.. i was waiting for it in the first page! :=)

V^2 = 190.44 + 2 * (-2.3) D i need to calculate D

ok, so the value of d is 190.14?

ok.. i understand, 130.68 can go into it because that is the distance she has to stop not the distance it takes her to stop.. so what do i put in instead of 130.68? 19.32?

OK i did it but i don't think its right: = 13.8^2 + 2 (-2.3) (130.68) = 190.44 + (-0.3) (130.68) = 190.44 + (-39.204) = 151.236 Do i square root the answer? if this is right...