I keep getting caught up because when I finish putting them all in their units, I end up with kg(m/s) = kg(m/s^(2)). If p is kg(m/s), wouldn't Δp have to be kg(m/s^(2))? But I know that Δp is kg(m/s) and that J = kg(m/s), but I am struggling to prove that the two equal each other.
A 60.0 kg boy standing on a 5.0 kg skateboard is holding two identical rocks each of mass 3.0 kg. He throws them both in front of himself at the same time with a velocity of 4.0 ms–1 with respect to the skateboard. Determine the final velocity of the boy if friction is ignored.
I'm stuck on this problem:
A 3 kg object moving at 4 m/s, overtakes a 2 kg object moving in the same direction at 2 m/s. if they collide elastically, what is the final velocity of each object?
How do I even begin solving it? I missed my last lecture and my professor doesn't record his sessions. Can someone please walk me through it?
"𝐴 and 𝐵 are travelling together until pushed apart by explosions. '𝑚𝐴' means 'mass of 𝐴'."
"( Part D ) What is the mass of 𝐵 if the initial combined velocity is −4.0m/s, the 9.0kg object 𝐴 is travelling at −5.0m/s after and 𝐵 is travelling at +6.0m/s after?"
How far I’ve got:
All I know so far is that momentum measures how much motion an object has, taking into account its mass and velocity. Momentum is a vector and it is calculated using the formula **momentum (kg m/s) = mass (kg) • velocity (m/s).
I also know about the law of conservation of momentum, how the initial momentum is equal to the final momentum.
So, (9kg • Initial velocity of A (?)) + (mass of B (?) • Initial velocity of B (?)) = (9kg • -5m/s) + (mass of B (?) • +6m/s).
That’s as far as I got, any advice?
Testing on multiple phone devices, the "jump" strength varies! Some times its barely a jump when you tap your screen, other times when you tap the screen, the jump (add force) shoots you way in the air. It seems to depend on the device. Is there something I need to lock to keep everything smooth?
Jump Functionality. The green line is going to the Event Tick Delta time.
This question is looking for a) an answer I guess and b) elastic or inelastic. How do I know which? What do they each mean?
This test makes or breaks my grade.
I'm completely lost, i don't even know what to do first; considering that it has impulse, meaning you can't use the conservation of momentum formulas
Pic : https://imgur.com/5N5cG9j
anyone know what this means in the patch notes. is this why when i'm flying on a gasbag if the server lags at all i stop like i hit a brick wall now?