Posted by **Anonymous** on Thursday, November 24, 2011 at 2:36am.

Stone is dropped frm rest,frm point A on a cliff,it falls 64,8m to point C,B is a point one quarter of the way down.calculate the time the stone takes to fall frm A to C.

- physics -
**drwls**, Thursday, November 24, 2011 at 5:51am
The time required to fall 64.8 meters, from A to C, is given by

64.8 = (g/2)*t^2 = 4.9 t^2

t = 3.64 s

You mention a point B, 1/4 of the way down, but you don't ask any question about B. The stone arrives there in half the time, 1.82 s.

## Answer This Question

## Related Questions

- Physics - A stone is dropped off the science building and accelerates, from rest...
- physics - A stone is dropped off the science building and accelerates, from rest...
- physics - a. A stone is dropped at t = 0 s. A second stone, with a mass 2.0 ...
- Physics - A stone is dropped at t = 0. A second stone, with 4 times the mass of ...
- physics - A stone is thrown vertically upward. On its way up it passes point A ...
- physics - A cyclist starts from point X and rides 3 km due west to point Y. At Y...
- Physical - At t = 0 s time a stone is thrown from the top of a cliff above a ...
- physics - A stone is thrown vertically upward. On its way up it passes point A ...
- Physics 4a - A stone is thrown vertically upward. On its way up it passes point ...
- Physics - A stone is thrown vertically upward. On its way up it passes point A ...

More Related Questions