Posted by Anonymous on Tuesday, October 12, 2010 at 2:41pm.
April releases a rock at rest from the top of a 40 m tower. Ignoring air resistance, what is the speed of the rock as it hits the ground? ( g = 9.8 m/s/s)

physics  drwls, Tuesday, October 12, 2010 at 3:40pm
Calculate how long it take to hit the ground, by rearranging the equation
Y = (1/2) g t^2
which should be in your course/text materials.
Let Y be the 40 m distance that it falls. Solve for t.
on ce you have t, get the velocity from
V = gt
Answer This Question
Related Questions
 Physics  Omar throws a rock down with speed 12 m/s from the top of a tower. The...
 physics  c) A 0.26kg rock is thrown vertically upward from the top of a cliff ...
 physics  omar throws a rock down with speed 12 m/s from the top of a tower. the...
 Physics  omar throws a rock down with speed 12 m s from the top of a tower. The...
 physics  A 0.26 kg rock is thrown vertically upward from the top of a cliff ...
 physics..help PLEASE!  A 0.26 kg rock is thrown vertically upward from the top ...
 PHYSICS  A 0.26kg rock is thrown vertically upward from the top of a cliff ...
 Physics  A 0.26kg rock is thrown vertically upward from the top of a cliff ...
 Physics  A boy kicks a rock off a cliff with a speed of 19.4 m/s at an angle of...
 Physics  A 0.26 kg rock is thrown vertically upward from the top of a cliff ...
More Related Questions