Recent content by eulerddx4

Hi, I'm performing tension tests using a dog-bone specimen conforming to ASTM E8 on 6061-T6 extruded aluminum alloy. ASTM E8 says the surface preparation should be as the product specified. The material I ordered is low grade bar stock 2" wide by 0.25" thick. If I am going to reduce the...

Hello, I am designing a robot that shoots basketballs of diameter 7 in and am trying to figure out a couple things. First: I was talking to a friend and they were saying that when you shoot a ball energy gets lopped off as it is shot. I'm wondering if this is energy lost due to...

Hello, I am trying to figure out how to calculate the momentum of something at a right angle. basically a hockey puck is traveling on the x-axis and hits a stationary hockey puck. One of the hockey pucks goes up the y-axis (puck A) and one hockey puck goes down the y-axis (Puck B). Am I...

Wait wait wait, Newton's law says in your example that if you give me 5 dollars i have to give you 5 dollars back. If I push on a wall the wall has to push me back with the same force. If a mack truck hits a bike the mack truck gives a force to the bike and the bike gives that same force back to...

Ok So now I understand! The forces don't cancel out. They are real, they exist and they act on both the nail and the hammer/ person assembly. when you hit the nail you get pushed back but you don't get moved back very much because you are standing on the ground and you have significant mass so...

Yes thank you for taking the time to answer the question! No one would give me a legit answer haha

so the accleration of the ball is greater than the acceleration of the wall and so there is a net force? or what exactly happens in this situation

i don't understand why there is any acceleration at all. In my mind there has to be a net force for there to be acceleration but i see no net force here

last year when i took physics my physics teacher said if you have a game of tug of war, the only way to win is if one side pushes harder on the ground because when you pull on the other side the other side pulls with the same exact magnitude in the opposite direction. Is my physics teacher...

so then how does someone push something like a car or a box

but why should i be providing acceleration if the force is canceled. Doesn't there have to be some outside force. When i push on a car the car pushes on me. The only way for me to move the car / accelerate it is if i push on the ground really hard.

says to self: "why is this so hard for me to understand"

i just don't get why there's acceleration if the force of the hammer is the same and opposite the force on the nail. To me it seems like the force should just go away if that's the case

well I am thinking that there's a force acting on the hammer just as there's a force acting on the nail

oooooo