Solution of task 15.1.23 from the collection of Kepe OE

Solution of task 15.1.23 from the collection of Kepe OE

15.1.23.
To lift the load 1 mass m1 = 200 kg, a winch is used. The gear 3,
Connected to the motor shaft, rotates uniformly with an angular velocity? 3 = 30
Rad / s. Determine the power of the electric motor in kW if the number of teeth of the wheels is z2 = 2z3 and
Radius of the drum r = 0.1 m. (Answer 2.94)