An explosive with 40% TNT provides more heaving or pushing thrust than an explosive with a larger percentage of TNT that causes a shattering effect.

An explosive with 40% TNT provides more heaving or pushing thrust than an explosive with a larger percentage of TNT that causes a shattering effect.

• A. It depends on other factors
• B. True
• C. Not enough information
• D. Both thrust and shattering can occur depending on design

Answer: (B)

Energy release rate and confinement shape what a blast does to its surroundings. Pushing or heaving thrust comes from the impulse—the total momentum transferred to the surroundings over the duration of the blast. An explosive with a moderate TNT share can be arranged to release energy in a way that delivers more sustained impulse, producing more push, even if another formulation has a higher TNT percentage and is optimized for a rapid pressure spike that causes shattering. So, the outcome isn’t determined by TNT percentage alone; design, confinement, and how the energy is released matter. That’s why this choice is considered true in the context of blast effects: a charge with 40% TNT can produce greater heave than a higher-TNT charge designed for shattering.

Energy release rate and confinement shape what a blast does to its surroundings. Pushing or heaving thrust comes from the impulse—the total momentum transferred to the surroundings over the duration of the blast. An explosive with a moderate TNT share can be arranged to release energy in a way that delivers more sustained impulse, producing more push, even if another formulation has a higher TNT percentage and is optimized for a rapid pressure spike that causes shattering. So, the outcome isn’t determined by TNT percentage alone; design, confinement, and how the energy is released matter. That’s why this choice is considered true in the context of blast effects: a charge with 40% TNT can produce greater heave than a higher-TNT charge designed for shattering.