Question 1

How is thrust force calculated?

Accepted Answer

Thrust equals mass flow rate times exhaust velocity: F = ṁ × v. For rockets, this determines how much push the engine produces.

Question 2

What affects thrust force?

Accepted Answer

Exhaust velocity, mass flow rate, and pressure difference. Higher exhaust velocity and fuel burn rate increase thrust.

Question 3

What's the difference between force and pressure?

Accepted Answer

Force (newtons) is a push or pull. Pressure (pascals) is force per unit area. Same force over smaller area = higher pressure.

Question 4

Why do we need different force units?

Accepted Answer

Newtons are SI standard. Pounds-force connects to everyday weight. Dynes (CGS) are used in some scientific fields. Each suits different applications.

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