A stone is dropped from the edge of a roof, and hits the ground with a velocity of -185 feet per second. How high (in feet) is the roof?

Question

amistre64 · Answer

How many times do I have to tell these kids to get off my roof!!

anonymous · Answer

Vf^2 = Vi^2 + 2*a*d
Vf = -185
Vi = 0
a = -9.8
so for d

amistre64 · Answer

We had a question in our textbook; if you drop an anvil off a cliff....why are people doing this!!

anonymous · Answer

solve for d*
sorry..i can't seem to type today

anonymous · Answer

Wow, that makes so much sense, thank you! And it does make me wonder about the people who make these questions up!

anonymous · Answer

Doesn't that method assume an acceleration due to gravity of 9.8 FEET per second?