v(x,t)= -30cos(30x-15t). Find v when x=1.5 and t=15. Please teach me how to find cos in RADIANT!
v(x,t)= -30cos(30x-15t)
when x=1.5 and t=15
v(1.5,15)= -30cos(301.5-1515)=-30cos(-180)
first off change radian into degree
180 rad=180180/ degree=10313.24 degree
v(1.5,15)= -30cos(301.5-1515)=-30cos(-180)=-30cos(-10313.240)=17.95 m/s
v(x,t)= -30cos(30x-15t). Find v when x=1.5 and t=15. Please teach me how to find cos in...
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