A stone falls down a well vertically. Ignore friction.
it falls 60m , initial speed = 5m/s
acceleration must be -9.8m/s/s
If i use s = ut +1/2at^2 I can get an answer but it comes out as
-60 = 5t - 4.9t^2
I'm fairly sure you shouldn't have to use quadratic formula for a short question. What's wrong?