Gravitation — Formula Sheet
Madhya Pradesh Board · Class 9 · Science
15 formulas from Gravitation (Madhya Pradesh Board Class 9 Science) on one page, grouped by topic. Includes Universal Law and Formula.
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Formulas and Key Relations
Universal Law of Gravitation
F = G × (M × m) / d²
G = 6.674 × 10⁻¹¹ N m² kg⁻²
Free Fall and Acceleration due to Gravity
g = GM / R²
g = 9.8 m/s² ≈ 10 m/s² (for easy calculations)
v = u + gt
s = ut + ½gt²
v² = u² + 2gs
Mass and Weight
W = m × g
W_moon = (1/6) × W_earth
Thrust and Pressure
Pressure (P) = Thrust (F) / Area (A)
Free Fall and Acceleration due to Gravity
Acceleration due to gravity (g) = 9.8 m/s² near Earth's surface
Thrust and Pressure
Pressure is thrust per unit area (P = F/A)
Universal Law
F = GMm/d², where G = 6.674 × 10⁻¹¹ N m² kg⁻².
Acceleration due to gravity (g) ≈ 9.8 m/s², often approximated as 10 m/s².
Formula
g = GMₑ/Rₑ² (derived by combining Newton's Second Law and Universal Gravitation Law).
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