I tried solving it and dats what i got:
Fnet= ma
Fs + fg = 0
KX - mg = 0
k = (mg)/ X
(10kg x 9.8m/s) / 0.04
= 2450
first spring = (2450 x 2)
= 4 900
Fa = (k1 + k2)
X= (mg/ k1 + k2)
(10kg x 9.8) / ( 4 900 N/m+4 900N/m)
0.01m= X
i did tried solving the questions and I did it the following way:
Pi=Pf
(Mc x Vc)+(Mc x Vc)= (Mc x Vl) x Vcl
30 000kgm/s /2000 kg = Vcl
15m/s = Vcl
Ei = Ef
kinetic enerygy = mgh
0.5(2000)(15 x 15) = ( 2000 x 9.8 m/s) h
(225000 kgm/s2) / (19600 kgm/s2)
= 11.5 kgm/s2
Homework Statement
A 1000 kg plane is trying to make a forced landing on the deck of a 2000kg barage at rest on the surface of a calm sea. The only frictional force to consider is between the plane's wheels and the deck, and this braking force is constant and equal to one-quater of the plane's...
Homework Statement
A uniform bar of an iron is supported by a long, uniform hooke's law spring. The spring is cut in half and two pieces are used to support the same bar. If the whole spring stretched by 4.0cm, by how much would each half strech?
Homework Equations
f=Kchange in X
The...