College

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

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

Answer :

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

[tex]\[ \text{Force of gravity} = \text{mass} \times \text{acceleration due to gravity} \][/tex]

On Earth, the acceleration due to gravity is approximately [tex]\( 9.8 \, \text{m/s}^2 \)[/tex].

In this problem, the mass of the object is given as [tex]\( 20 \, \text{kg} \)[/tex].

Let's calculate:

1. Mass of the object: [tex]\( 20 \, \text{kg} \)[/tex]
2. Acceleration due to gravity on Earth: [tex]\( 9.8 \, \text{m/s}^2 \)[/tex]

Now, multiply these two values to find the force of gravity:

[tex]\[ \text{Force of gravity} = 20 \, \text{kg} \times 9.8 \, \text{m/s}^2 = 196 \, \text{N} \][/tex]

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

The best answer to the question is:

B. 196 N
The formula of gravitational force will be used:
F= ma, in which “a” is acceleration due to the Earth’s gravity and “m” is the mass of the given object. “a” is always constant and its value is 9.8.
Start by plugging in your given values:
F= 20 Kg multiplied by 9.8
Therefore, the answer is B. 196