In which of the following situations will there be no torque?Choose all that apply. A. A256 N force is applied at the acis of rotation. B. A 3296 N force is applied 10 cm from the axis of rotationand is parallel to the lever arm. C. A force is applied 8 cm away from the axis of rotation andis perpendicular to the lever arm. D. A rotating body has an angular acceleration of 90rad/s2. E. A sphere is soinning with a constant angularvelocity. In which of the following situations will there be no torque?Choose all that apply. A. A256 N force is applied at the acis of rotation. B. A 3296 N force is applied 10 cm from the axis of rotationand is parallel to the lever arm. C. A force is applied 8 cm away from the axis of rotation andis perpendicular to the lever arm. D. A rotating body has an angular acceleration of 90rad/s2. E. A sphere is soinning with a constant angularvelocity.
Explanation / Answer
. Torque, = Force * perpendicular distance . ( O R ) . Torque, = Moment of inertia * Angular acceleration = I . Answers: Option - A :Here Torque = 0 because perpendicular distance =0 . Option - B : Here Torque = 0 because perpendicular distance =0 . Option - E : Here Torque = 0 because angular acceleration =0