Solution of task 8.4.12 from the collection of Kepe OE

If the total amount of your purchases from the seller Михаил_Перович more than:
- 200 $ the discount is 15%
- 100 $ the discount is 10%
- 50 $ the discount is 7%
- 20 $ the discount is 5%
- 10 $ the discount is 3%
- 5 $ the discount is 2%
- 1 $ the discount is 1%

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8.4.12
The gear wheel 3 rotates equally with an angular acceleration? 3 = 8 rad / s2. Determine the path covered by load 1 for a time t = 3 s, if the radii R2 = 0.8 m, R3 = 0.6 m, r = 0.4 m. The cargo 1 at the beginning of the movement was at rest. (Answer 10.8)