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omega(t)=15t^2+0,8t-0,5
dit
a. posisi (theta) sudut saat t=1
theta > omega > alpha, jd diintegralkan
omega(t)=15t^2+0,8t-0,5
theta(t)=5t^3+0,4t^2-0,5t
theta(1)=5(1)^3+0,4(1)^2-0,5(1)=4,9 rad
b. percepatan (alpha) sudut saat t=3
theta > omega > alpha, jd diferensialkan
omega(t)=15t^2+0,8t-0,5
alpha(t)=30t+0,8
alpha(3)=30(3)+0,8=90,8 rad/s^2