If an object at rest on Earth has a mass of 20kg, what is the normal force equal to?

1 Answer
juel
Mar 7, 2018

196 N

Explanation:

If the body rests in earth surface then its weight is #20 * 9.8=196# N.So as per Newton 3rd law (every action has an equal and opposite reaction) the earth surface will give 196 N force on the body to keep the system equilibrium.So its the normal force of the body

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