Recent content by JonasKVJ

Well the teacher said that I had to ask my group about it for the correct answer and I already handed it in the first time stating: "It can't be solved because the mass is missing" but that wasn't the right answer. But to be honest I did write "The mass of the spring and the projectile is...

Okay thanks I'll look at that and try to figure it out.

When using energy approach I know the following: Epot=mgh before the spring has become unstretched and it describes the energy of the spring i.e. the energy that the spring has a potential to give to the projectile. The thing is that I do not know the mass of the projectile... I also know that...

What I have given is: A projectile with an unknown mass is launched 90 degrees vertically to a height of 0.650 m with a spring deformation of x = 0.031 m. The initial speed of the projectile is v0=3.6 m/sec and the projectile is resting on top of the spring gun "holder" before launch. Find the...