Question

A model of a car is made to a scale of 1.10. What is the ratio of the volumes of the model car to the real car? If the model car has a mass of 2.1 kg: what is the mass of the real car assuming the same metal is used?​

Answer 1

1:1000

2,100 kg

Explanation:

A linear scale of 1:10 means a volume scale of 1:1000.

The ratio of the volumes is model:real = 1:1000.

The mass is proportional to the volume.

The real car has a volume 1000 times the volume of the model, so its mass is also 1000 times the mass of the car.

mass of real car = 1000 × 2.1 kg = 2100 kg