College

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

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

Answer :

Sure! To find the force of gravity acting on an object, we use the formula:

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

Where:
- [tex]\( F \)[/tex] is the force of gravity,
- [tex]\( m \)[/tex] is the mass of the object,
- [tex]\( g \)[/tex] is the acceleration due to gravity on Earth, which is approximately [tex]\( 9.8 \, \text{m/s}^2 \)[/tex].

For the given problem:

1. The mass ([tex]\( m \)[/tex]) of the object is [tex]\( 20 \, \text{kg} \)[/tex].
2. The acceleration due to gravity ([tex]\( g \)[/tex]) is [tex]\( 9.8 \, \text{m/s}^2 \)[/tex].

Now, plug these values into the formula:

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

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

So, the force of gravity acting on the object on Earth is [tex]\( 196 \, \text{N} \)[/tex].

Therefore, the correct answer is B. 196 N.