Question

if a suitcase has a mass of 20 kg, what is the force of gravity acting on it?

Explanation:

Step1: Recall gravitational force formula

The force of gravity is calculated by $F = m \times g$, where $m$ is mass, and $g$ is the acceleration due to Earth's gravity ($9.8\ \text{m/s}^2$).

Step2: Substitute given values

Substitute $m = 20\ \text{kg}$ and $g = 9.8\ \text{m/s}^2$ into the formula:
$F = 20\ \text{kg} \times 9.8\ \text{m/s}^2$

Step3: Calculate the force

$F = 196\ \text{N}$ (Newtons, the unit of force)

Answer:

$196\ \text{Newtons}$