Which one will have more inertia: a loaded truck or an empty truck?
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Solution
A heavier body has more inertia than a lighter body. So, the larger the mass, the larger is inertia, and the smaller the mass, the smaller the inertia.
We can say that the mass of a body is a measure of its inertia.
A loaded truck has more mass than an empty truck, so it will have more inertia.