Question 16

Question

What is the mass of an object with a weight of 120 Newtons on Earth? The force of gravity on Earth is 9.81 m/s2

Weight = Mass x Gravity

a
130 kg
b
12 kg
c
1177 kg
d
0.082 kg

Answer 1

To find the mass of the object, we can use the formula:

\[ \text{Weight} = \text{Mass} \times \text{Gravity} \]

We can rearrange this formula to solve for mass:

\[ \text{Mass} = \frac{\text{Weight}}{\text{Gravity}} \]

Given:

• Weight = 120 Newtons
• Gravity = 9.81 m/s²

Now we can substitute the values into the formula:

\[ \text{Mass} = \frac{120 , \text{N}}{9.81 , \text{m/s}^2} \]

Calculating this gives:

\[ \text{Mass} \approx \frac{120}{9.81} \approx 12.24 , \text{kg} \]

So, the closest answer is:

b 12 kg