Final answer:
The mass of the car is found using Newton's second law of motion, F = ma, giving a result of 100 kg when a force of 70 Newtons and an acceleration of 0.7 m/s² are applied.
Step-by-step explanation:
The question is asking to find the mass of a car when given the acceleration and force acting on it. This is a classic physics problem that involves Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). To find the mass (m), you can rearrange the equation to m = F / a.
In this case, the force (F) is 70 Newtons and the acceleration (a) is 0.7 m/s². Therefore, by substituting these values into the equation, the calculation for mass would be:
m = F / a = 70 N / 0.7 m/s²
The result is m = 100 kg. So, the mass of the car would be 100 kilograms.