00:01
So in this problem we have vote cane on io, which are one of the moons of drifter low ejecting material upwards until the height off.
00:18
Let's see three times 10 to the power of five meters.
00:25
And we know that the gravity acceleration on io is just 1.8 meters per second square.
00:35
And the problem wants us to find out what is the initial velocity off the ejected material.
00:43
So okay, looking to the information we have in the problem, we only have the space which are the difference position, the displacement and the gravity acceleration of gravity.
00:58
And we want to find out the velocity.
01:01
So the only creation we know that describes the velocity as a function off space is just to g don't, uh, ex.
01:20
And in this problem particularly, we have to he's marked because the gravity is going to be negative.
01:29
Why so because gravity always point to the ground and the movement his upwards.
01:42
So when the gravity is in the opposite direction of the movement, we need to put a negative sign in front of these value...