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Rosa’s claim is false. When the mass of the cart increases by 1.0 kg, the force on the cart increases by more than 1.0 kilogram.
Rosa’s claim is false. Even though the mass and the force increase in each trial, the acceleration of the object remains the same.
Rosa’s claim is true. The acceleration for each trial is the same. Doubling the mass of the cart causes the force to double in order to maintain the same rate of acceleration.
Rosa’s claim is true. Each time the mass increases by 1.0 or 2.0 kilograms, the force increases by 1.0 or 2.0 newtons respectively. This causes the rate of acceleration to remain constant.
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An object with a lower mass has less inertia which causes it to speed up less quickly.
An object with a higher mass has more inertia which causes it to speed up less quickly.
An object with a lower mass has more inertia which causes it to speed up more quickly.
An object with a higher mass has less inertia which causes it to speed up more quickly.