On a given planet, the weight of an object varies directly with the mass of the object. Suppose that an object whose mass is 2 kg weighs 6 N. Calculate the mass of another object that weighs 9 N .

Question

___ kg

Answer 1

To solve this problem, we can set up a proportion using the information given:

2 kg = 6 N
x kg = 9 N

Using the proportion, we can set up the equation:

2/6 = x/9

Cross multiplying, we get:

2*9 = 6x
18 = 6x
x = 3 kg

Therefore, the mass of the object that weighs 9 N is 3 kg.