Final answer:
Spitzer bullets are sharply pointed to minimize air drag, mimicking the aerodynamic designs used in racing cars and bobsleds to achieve high speeds.
Step-by-step explanation:
The type of bullets that are sharply pointed to minimize air drag are Spitzer bullets. These bullets are designed with an aerodynamic shape to reduce the air resistance they face when moving at high speeds. Just like racing cars and bobsled racers, where aerodynamic shaping is crucial for achieving top speeds, bullets benefit from a similar design principle. Bobsleds, for instance, are designed for speed and have a shape comparable to a bullet, with tapered fins to lower the value of the drag coefficient, C, which is measured empirically using wind tunnels.