Practicing Success
Practicing Success
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A particle of mass m lies at a distance r from the centre of earth. The force of attraction the particle and earth is F(r). |
F(r) ∝ $\frac{1}{r^2}$ for r < R F(r) ∝ $\frac{1}{r^2}$ for r ≥ R F(r) ∝ r for r < R Both B and C |
Both B and C |
F = $\left\{\begin{array}{l}\frac{GMm}{r^2} r \geq r \\ \frac{4 \pi G \rho rm}{3} r<r\end{array}\right.$ where ρ is density of earth. |
