Sprendimas: q0HPcE - 1

W_k  = 
 
 J* ω^2
/ 2
W_k =  
 J* ω^2
/ 2
$$W_{k}$$ = $$\frac{J\cdot \omega^{2}}{2}$$
W_k =  0.5* J* ω^2$$W_{k}$$ = $$0.5\cdot J\cdot \omega^{2}$$