a stone is dropped from a height of 5 meters
how long does it take to reach the ground?
with what velocity does it hit the ground?
2007-11-24 23:52:30 · 8 answers · asked by Josh N 2 in Science & Mathematics ➔ Physics
show all working please
2007-11-24 23:52:54 · update #1
boy if you know the answer stop wasting points!
2007-11-24 23:55:08 · answer #1 · answered by Kady 4 · 0⤊ 1⤋
sixteen. pluto 17. mars 18. mars 19. earth 20. mars 21. jupiter 22. saturn 23. mercury and venus 24. pluto 25. saturn 26. venus 27. N united statesJ 28. mars 29. saturn 30. jupiter 31. mercury 32. venus 33. earth 34. jupiter 35. uranus 36. mercury 37. saturn 38. neptune 39. mars 40. earth 40-one. mercury 40 two. jupiter 40 3. jupiter 40 4. earth 40 5. uranus 40 six. venus 40 seven. mars and jupiter 40 8. earth
2016-10-09 10:54:25 · answer #2 · answered by Erika 4 · 0⤊ 0⤋
we will solve for velocity first...
using conservation of energy
initial gravitational potential energy = final kinetic energy
(assume no air resistance)
from this we can equate....
mgh = 1/2 mv^2
although mass is not provided, it can be cancelled and is not needed
gh = (v^2)/2
v = sqrt(2gh)
= sqrt(19.62 x 5)
= 9.9 m /s approx
time taken is displacement / velocity
5 / 9.9 = 0.51s (approx)
2007-11-25 03:00:27 · answer #3 · answered by brownian_dogma 4 · 0⤊ 0⤋
my friend you are talking about gravity and you are NOT specifying the weight of stone..
but it will take less then a second to be on ground..
2007-11-25 00:07:24 · answer #4 · answered by Jacky K 1 · 0⤊ 0⤋
You haven't told us which planet the stone is on.
Nor for that matter which planet you are on.
2007-11-25 03:12:07 · answer #5 · answered by za 7 · 0⤊ 0⤋
the information is not enough
required:time or velocity
2007-11-25 01:41:14 · answer #6 · answered by sadhana s 2 · 0⤊ 0⤋
ar u a teacher or some thing? lol
2007-11-24 23:56:00 · answer #7 · answered by Im not sure 3 · 0⤊ 1⤋
you are being lazy . homework means you should work it out for yourself :)
2007-11-24 23:56:04 · answer #8 · answered by groovydude 2 · 3⤊ 1⤋