Thanks a lot. As a matter of fact I did test this equation using some of my homework questions and it did check out although I still wanted to check on physics-forums cause my homework isn't always completely realistic and I didn't know if i was leaving out something that I hadn't learned. (In...
To clarify, I am imagining that it would be like hitting a baseball, the amount of time during which the impulse is applied is insignificant and before it can even be measured the object already has a maximum initial velocity.
For example: I have a mass on a table, and i punch it. The time...
I see what you mean. I think it is just a typo, because right underneath I retain the negative indicating that it is initial kinetic energy that should be used in the equation, not finale. Thx for your help and if there's anything else you see that may not be realistic feel free to tell me...
Im a high school student and am in AP Physics 1. I just created a formula for calculating the coefficient of kinetic/static friction between two objects using only distance and time (I don't have a way to measure Newtons). Is it correct and can it be used in the real world?
In this diagram, we see that the .5kg cart is being pulled by the .2 kg mass and has an initial velocity of 7m/s.
We know that the net force (ΣF) acting on the system is going to be the .2 mass being pulled down by the force of gravity, as there is no friction between the cart and the surface...
Im not very sure what the question is asking although it seems that you are saying a spring compressed .2m with k=120 N/m launches a block off a table. The question, I think, is how far the block travels.
First we need to find the horizontal velocity of the block after the spring has relaxed...
I thought of this problem as C = A + (-B). This means that it is the same as adding a vector, just the vector you are adding is negative. In order to add the vectors, we must split them into their components. We know that vector A is at an angle of 60 and therefore has X and Y components, while...