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The earth's gravitational field intensity at its surface is about…
(G = 6.7 x 10-11Nm2kg-2, mass of earth = 6 x 1024kg, radius of the earth = 6.4 x 106m, g = ms-2 )
- A. 6.7N/kg
- B. 7.9N/kg
- C. 8.0N/kg
- D. 9.8N/kg
QUICK ANSWER…
D
DETAILS…
The right formula for gravitational field intensity is given by:
Gravitational field intensity = force/mass
But according to Newton's law of universal gravitation,
Now for the right answer to the above question:
- Option A is incorrect.
- Option B is incorrect.
- C is incorrect.
- D is the correct answer.
KEY-POINTS…
You may please note these/this:
- Gravitational field intensity is equal to force/mass
- Electric field intensity is similar, it equal to force/charge
Use the questions and answer section to correct, express, and contribute your views.
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/culled from 2019 JAMB-UTME physics question 34/
