Stokes’ law and terminal velocityस्टोक्स का नियम और सीमांत वेग

NCERT Section 9.5.1 · interactive diagram

Parts and their functions

• Viscous liquid (oil) (श्यान द्रव (तेल)) — Density σ, viscosity η.
• Sphere, radius a, density ρ (गोला, त्रिज्या a, घनत्व ρ) — Accelerates at first, then falls with constant speed.
• Weight (भार) — (4/3)πa³ρg, downward.
• Viscous drag (Stokes) (श्यान कर्षण (स्टोक्स)) — F = 6πηav — grows with speed until the forces balance.
• Buoyant force (उत्प्लावन बल) — (4/3)πa³σg, upward.

Original diagram drawn by Simple Learning Hub, based on NCERT Section 9.5.1. Report a mistake