a braking force of 200n is applied to slow the car down how may seconds the force must be applied for in order to bring the car to a complete stop.

To determine the time required to bring the car to a complete stop, we need to know the mass of the car. The equation we'll use is:

Force = mass * acceleration

In this case, the force is 200 N, and we want to find the time required, which is denoted as "t". Since we want to stop the car completely, the acceleration will be negative (opposite to the motion of the car). Let's write down the equation:

200 N = mass * (-9.8 m/s^2)

The value of 9.8 m/s^2 is the acceleration due to gravity on Earth. To find the time required, we rearrange the equation to solve for mass:

mass = 200 N / (-9.8 m/s^2)

Now, without the mass of the car, we cannot determine the time required to bring it to a complete stop. Could you please provide the mass of the car?