a ball dropped off a cliff and took 3.59s to fall to the water below. neglecting air resistance how far in meters did it fall how far is it down to water
physical science - Elena, Tuesday, June 19, 2012 at 9:21am
at the top point
t1= vₒ/g =34.7/9.8=3.54 s.
h= vₒ•t1 –g•t1²/2=34.7•3.54 - 9.8•3.54²/2 =61.5 m
=sqrt(2•61.5 /9.8) = 3.54 s.
Time upward =time downward!
t =2•t1=2•3.54 =7.08 s.