The circumference of clockwise rotation is: 50×2×3. 14=3 14 mm.
The hour hand turns once, and the minute hand turns 12 turn;
The circumference of 12 is: 60× 2× 3.14×12 = 4521.6 mm.
The needle tip of the hour hand goes 3 14 mm, and the needle tip of the minute hand goes 4521.6 mm.