Please explain step by step with points..
6.67 x 10^ -11 x 75 x 6 x 10^24 divided by (6.4 x 10^6)^2
From Chapter Gravitation
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Answered by
11
From universal law of gravitation
F=GMm/R^2. Eq 1
from law of motion
F = mass x acceleration.
F = mg. Eq 2
from equation 1st and 2nd
GMm/R^2 = mg
g = GM/R^2
G= 6.67 x 10^-11
M = 6 x 10^24
R = 6.4 x 10^6
g = 6.67 x 10^-11 x 6 x 10^24/(6.4 x 10 ^6)^2
g = 9.8m/sec^2
Answered by
15
F=6.67 ×10⁻¹¹×75×6×10²⁴÷(6.4×10⁶)
F=6.67×6×75×10¹³÷ (6.4)²×(10⁶)²
F= 40.02×75×10¹³÷40.96×10¹²
F=3001.5×10¹³÷40.96×10¹²
F=3001.5÷40.96×10¹³÷10¹²
F=73.27×10
F=732.7 N
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