The ratio of the masses of the toy cars is 1 : 3 : 6.
Effect of gravity on masses
When the mass of object increases, the force of gravitational attraction between them also increases.
Ratio of the masses of the toy cars
The ratio of the masses of the toy cars is calculated as follows;
Ratio of masses = 0.3 kg/0.3 kg : 0.9 kg/0.3kg : 1.8 kg/0.3 kg
Ratio of masses = 1 : 3 : 6
Thus, the ratio of the masses of the toy cars is 1 : 3 : 6.
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