Solution of the D1 3. The traction force helicopter rotor mass m in vertical rise from rest in 1.5 times its weight. The air resistance is proportional to the rate R = -0,7tv. Determine the rise velocity at time t = 5 seconds, and the maximum speed of the helicopter.

Right after the payment you receive a link to the archive with the solution of the problem in theoretical mechanics D1 B03 (condition 03) in the test book "theoretical mechanics" Dievskaya VA Malyshev IA 2009 for university students.
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