Question 54
Use the pictured external gears. a. If D turns clockwise, does J turn clockwise (C) or anticlockwise (AC)? b. If L turns anticlockwise, does Q turn C or AC? c. The source asks whether a greater (G) or lesser (L) force than that applied to E is needed to prevent J turning. Explain what extra information is needed rather than forcing G/L. Assume ideal external gears on separate fixed axles, negligible friction and no slipping; distinguish force from torque.
