Question

calculate the force of gravity acting on your friend of mass 60 kg mass of Earth is 6 × 10 power 24 kg and radius is 6.4 ×10 power 6 m

Answer 1

first the force of gravity is equal to GMm/Distance^2
from question m = 60kg
M=6×10^24kg
suppose the man is on the surface of earth and the distance from centre of earth is equal to the radius of earth so Distance ' d '= 6.4×10^6 m
now putting values in formula
G =6.67 ×10^-11Nm^2kg^-2
now
F=6.67×10^-11×60×6×10^24/6.4×10^6×6.4×10^6
.F=5.86×10=58.6N

Answer 2

⛦Hᴇʀᴇ Is Yoᴜʀ Aɴsᴡᴇʀ⚑
▬▬▬▬▬▬▬▬▬▬▬▬☟

➧ As we know that,

➧ F = GMm / r²

➾ (6.7 × 10-¹¹ × 6 × 10²⁴ × 60) /
(6.4 × 10⁶)²

➾ 588.9 N ...✔

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Thanks...✊