Recent content by noffya

Got it. I applied energy conservation law at step 3 and got the x equals 5.8cm Thanks a lot!

Thanks for hints!

Hello, I have difficulties with this problem: The body mass m1 = 20 g is fired with a spring, k = 72 N / m from position A. On arrival at point B hits completely elastic body mass m2 = 15 g. Find the distance x of compressed spring so that the mass m2 reaches point C separated a distance d...

thanks a lot! I subtracted a mass of 0,2831kg considering it a collar hole. I will try to make calculation based on all the comments. Hopefully that will lead me to the right solution.

Homework Statement A collar brass 50 mm length is mounted on an aluminum bar 80 mm in length (density of brass 8470 kg / m 3 density of aluminum 2800 kg / m 3 ). Find the height to which is the center of mass of the composite body. Homework Equations COM= m1*x1+m2x2/m1+m2 The...