A motor has a rotor (with armature) of moment of inertia ????m . The rotor is attached to a gear box of gear ratio G > 1. The
1 answer:
Answer:
hello your question is incomplete attached below is the complete question
answer : The moment of inertial felt by someone ( J ) is greater that the moment of inertia felt by the motor i.e. J > Jm
Explanation:
Gear ratio G > 1
a) Determine the moment of inertia felt by the motor
moment of inertia felt by Motor = moment of Inertia at the armature
b) Determine the moment of inertial felt by someone who is rotating the mass by hand
moment of inertia felt by someone is = J
The moment of inertial felt by someone ( J ) is greater that the moment of inertia felt by the motor
attached below is a detailed solution
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Answer:
560.06714 Nm
Explanation:
= Final angular velocity
= Initial angular velocity = 0
= Angular acceleration
= Angle of rotation =
(Half rotation)
v = Velocity of bat = 29.8 m/s
M = Mass of bat = 11.3 kg
m = Mass of ball = 0.196 kg
R = Radius of swing = 0.984 m
From equation of rotatational motion
Moment of inertia is given by
Torque is given by
The torque the pitcher applies is 560.06714 Nm