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Question Number 103652 by smartsmith459@gmail.com last updated on 16/Jul/20

Commented by Worm_Tail last updated on 16/Jul/20

1)    α=((((20000)/(60))−0)/(30))=((20000)/(1800))=11.11rps  2)   θ=ω_0 t+0.5αt^2       θ=(0)(30)+0.5(11.111)(30)^2      θ=5000rad        revolutn=((5000)/(2π))rev

$$\left.\mathrm{1}\right)\:\:\:\:\alpha=\frac{\frac{\mathrm{20000}}{\mathrm{60}}−\mathrm{0}}{\mathrm{30}}=\frac{\mathrm{20000}}{\mathrm{1800}}=\mathrm{11}.\mathrm{11}{rps} \\ $$$$\left.\mathrm{2}\right)\:\:\:\theta=\omega_{\mathrm{0}} {t}+\mathrm{0}.\mathrm{5}\alpha{t}^{\mathrm{2}} \\ $$$$\:\:\:\:\theta=\left(\mathrm{0}\right)\left(\mathrm{30}\right)+\mathrm{0}.\mathrm{5}\left(\mathrm{11}.\mathrm{111}\right)\left(\mathrm{30}\right)^{\mathrm{2}} \\ $$$$\:\:\:\theta=\mathrm{5000}{rad} \\ $$$$\:\:\:\:\:\:{revolutn}=\frac{\mathrm{5000}}{\mathrm{2}\pi}{rev} \\ $$

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