What inherent trade-off allows solid motors to achieve mechanical simplicity?

Answer

They lack the need for complex turbopumps and extensive plumbing required by liquid engines.

Solid rockets are self-contained units where the fuel and oxidizer are already mixed, eliminating the need for the intricate machinery necessary to manage and inject separate liquid components under high pressure.

What inherent trade-off allows solid motors to achieve mechanical simplicity?
disadvantagesrocket fuelhazardspropellantcombustion