High School

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------------------------------------------------ If an object has a mass of 20 kg, what is the force of gravity acting on it on Earth?

A) 196 N
B) 32.67 N
C) 2.04 kg
D) 1.96 kg

Answer :

To determine the force of gravity acting on an object, we use the formula

[tex]$$ F = m \times g, $$[/tex]

where
- [tex]$m$[/tex] is the mass of the object, and
- [tex]$g$[/tex] is the acceleration due to gravity.

Given that the mass of the object is [tex]$20 \, \text{kg}$[/tex] and the acceleration due to gravity on Earth is approximately [tex]$9.8 \, \text{m/s}^2$[/tex], we substitute these values into the formula:

[tex]$$ F = 20 \, \text{kg} \times 9.8 \, \text{m/s}^2. $$[/tex]

Multiplying, we get:

[tex]$$ F = 196 \, \text{N}. $$[/tex]

Thus, the force of gravity acting on the object is [tex]$196 \, \text{N}$[/tex], which corresponds to option A.