College

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



A) 2.04 kg

B) 196 N

C) 32.67 N

D) 1.96 kg

Answer :

To determine the force of gravity acting on an object, we use the formula for weight (the force due to gravity):

$$
F = m \cdot g
$$

where
- $m$ is the mass of the object, and
- $g$ is the acceleration due to gravity on Earth.

Given:
- The mass $m = 20\,\text{kg}$
- The gravitational acceleration $g = 9.8\,\text{m/s}^2$

Substitute these values into the formula:

$$
F = 20\,\text{kg} \times 9.8\,\text{m/s}^2 = 196\,\text{N}
$$

Thus, the force of gravity acting on the object is $196\,\text{N}$.

The correct answer is:
B) $196\,\text{N}$