The Earth (mass = 6 × 10²⁴ kg) revolve around the Sun with angular velocity 2 × 10⁻⁷ rad s⁻¹ in a circular orbit of radius 1.5 × 10⁸ km. The force exerted by the Sun on the Earth is:
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The Earth (mass = 6 × 10²⁴ kg) revolve around the Sun with angular velocity 2 × 10⁻⁷ rad s⁻¹ in a circular orbit of radius 1.5 × 10⁸ km. The force exerted by the Sun on the Earth is:

G1 Physics · Accepted Answer

Step 1: In circular motion, the Sun's gravitational force is the centripetal force F=Mω²r. Step 2: M=6×10²⁴ kg, ω=2×10⁻⁷ rad s⁻¹ and r=1.5×10⁸ km=1.5×10¹¹ m. Step 3: F=6×10²⁴×4×10⁻¹⁴×1.5×10¹¹=36×10²¹ N. Final: D.