What is the effect of doubling the diameter of a cantilever spring?: (A) Strength increases by 4 times, Springiness increases by 8 times, (B) Strength decreases by 4 times, Springiness decreases by 8 times, (C) Strength decreases by 8 times, Springiness increases by 16 times, (D) Strength increases by 8 times, Springiness decreases by 16 times
Answer is D. None