00:01
Okay, number one, now that you know the value of g near the surface of the earth is 9 .8 meter per second, square list some factors that may have affected accuracy if you're calculated values per g for each of the five different heights.
00:13
Okay, if you did experiment, we did an experiment at value of g that may be equal, greater, or less than the known value of 9 .8 p .m.
00:24
S squared.
00:25
And that difference may be due to random errors and systematic errors.
00:38
Random error is naturally a cooling error that can be expected in any experiment.
00:44
When it's due to miscalibration of the instrument or some error in the process that you did that experiment and will affect the measurement.
01:00
Number two as to determine the time will it take in saturn's moon to reach the ground from an object that is 2 .5 meters from the ground.
01:17
So if we set the ground as a zero vertical position, so when y is equals to zero, then y not is 2 .5 meters.
01:30
We're given the accretion due to gravity in moon's saturn's moon, which is 3 .5 meters.
01:36
0 .066 peter per second square.
01:40
But this is the kinematic equation that we will use.
01:46
Since this is a motion under gravity, the acceleration is equals to the negative of the oxygen due to the g.
01:52
And since it starts from rest, b not twice equals to zero.
01:56
Then our equation becomes of this.
02:05
Now what we need is to isolate the time to the left side of the equation.
02:13
Then we have to modify both sides of equation by two.
02:21
Then divide both sides of equation by g, then get the square width of both sides of declination...