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20 pts Question 3 force of P -56.65 N is applied to the cable, which causes the 221.0-kg reel to ...
20 pts Question 3 force of P -56.65 N is applied to the cable, which causes the 221.0-kg reel to turn since it is resting on the two rollers A and B of the dispenser. Determine the angular velocity of the reel after it has made two revolutions starting from rest. Neglect the mass of the rollers and the mass of the cable. Assume the radius cf gyration of the reel about its center axis remains constant at ko -0.40...
0/1 pts Question 5 A rock of mass 4 kg is twirled around a string of...
0/1 pts Question 5 A rock of mass 4 kg is twirled around a string of radius 2 m with a speed of 10 m/s. Determine the tension (units of Newtons) in the string (neglect gravity). er 200 margin of error +/- 5%
Question 1 0/10 pts A permanent magnet dc motor is to be started from rest. This...
Question 1 0/10 pts A permanent magnet dc motor is to be started from rest. This motor is driving a load of inertia J = 0.045 kg-m2, and a load torque of T = 2.1 Nm. The motor current must not exceed 15A First, find the expression of voltage va as functions of time which must be applied to bring this motor to a steady state speed of 300 rad/s as quickly as possible. Then, at time t= 1.4 seconds,...
20 pts Question 3 force of P -56.65 N is applied to the cable, which causes the 221.0-kg reel to turn since it is resting on the two rollers A and B of the dispenser. Determine the angular velocity of the reel after it has made two revolutions starting from rest. Neglect the mass of the rollers and the mass of the cable. Assume the radius cf gyration of the reel about its center axis remains constant at ko -0.40...
0/1 pts Question 5 A rock of mass 4 kg is twirled around a string of radius 2 m with a speed of 10 m/s. Determine the tension (units of Newtons) in the string (neglect gravity). er 200 margin of error +/- 5%
Question 1 0/10 pts A permanent magnet dc motor is to be started from rest. This motor is driving a load of inertia J = 0.045 kg-m2, and a load torque of T = 2.1 Nm. The motor current must not exceed 15A First, find the expression of voltage va as functions of time which must be applied to bring this motor to a steady state speed of 300 rad/s as quickly as possible. Then, at time t= 1.4 seconds,...
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