Answer:
The speed at point B is 5.33 m/s
The normal force at point B is 694 N
Explanation:
The length of the spring when the collar is in point A is equal to:

The length in point B is:
lB=0.2+0.2=0.4 m
The equation of conservation of energy is:
(eq. 1)
Where in point A: Tc = 1/2 mcVA^2, Ts=0, Vc=mcghA, Vs=1/2k(lA-lul)^2
in point B: Ts=0, Vc=0, Tc = 1/2 mcVB^2, Vs=1/2k(lB-lul)^2
Replacing in eq. 1:

Replacing values and clearing vB:
vB = 5.33 m/s
The balance forces acting in point B is:
Fc-NB-Fs=0

Replacing values and clearing NB:
NB = 694 N
I don’t thick it is write but I thick it is option (c)
Answer:
divide then add XD my guy this is easy
Explanation:
Answer:
Model codes are the codes which used to change the location of a machine from one place to other place to perform specific task.g and M are the model codes which used in machines.
Ex:
G0 ,G1 , G2 ,G80 ,G81 ... For motion
G17 ,G18 , G19 For planer selection
Mo ,M1 , M2 ,M30 ,M60 For Stopping
M6 For tool change
M26 ,27 For clamping
Of a heat heat engine is the percentage of heat energy that is transformed into work. i’m not sure what your question is tho