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m
made mistake when reformatting maths
Line 41: Line 41:  
:<math>U_f = U_{rod} + U_{block}</math>  
 
:<math>U_f = U_{rod} + U_{block}</math>  
   −
:<math>U_{rod} = \frac{mgl}{2} (1-cos\theta)</math>
+
:<math>U_{rod} = \frac{Mgl}{2} (1-cos\theta)</math>
    
:<math>U_{block}= mgl (1-cos\theta)</math>  
 
:<math>U_{block}= mgl (1-cos\theta)</math>  

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