A 265 g mass attached to a horizontal spring oscillates at a frequency of 3.40 Hz . At t =0s, the mass is at x= 6.20 cm and has 
vx =− 35.0 cm/s . Determine The phase constant.
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
The phase constant is 7.25 degree  
Explanation:
given data 
mass = 265 g 
frequency = 3.40 Hz
time t = 0 s
x = 6.20 cm
vx = - 35.0 cm/s
solution
as phase constant is express as
y = A cosФ ..............1
here A is amplitude that is =  =
  =  =  6.25 cm
  =  6.25 cm
put value in equation 1 
6.20 = 6.25 cosФ 
cosФ  = 0.992
Ф = 7.25 degree  
so the phase constant is 7.25 degree  
  
                                
             
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