February 19, 2017

Homework Help: Physics !!

Posted by Xiang ! on Monday, August 26, 2013 at 8:45am.

1) A stone is dropped from the roof of a building; 2.00 s after that, a second stone is thrown straight down with an initial speed of 25 m/s and the two stones land at the same time.
i) How long did it take the first stone to reach the ground?
ii) How high is the building?
iii) What are the speeds of the two stones just before they hit the ground?

2)A jet fighter is traveling horizontally with a speed of 111 m/s at an altitude of 3.00×102 m, when the pilot accidentally releases an outboard fuel tank.
i) How much time elapses before the tank hits the ground
ii) What is the speed of the tank just before it hits the ground
iii) What is the horizontal distance traveled by the tank.

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