The movement of a truck is given by the equation x = 380-20t. To determine the initial coordinate and speed of the car.

The movement of a truck is given by the equation x = 380-20t. To determine the initial coordinate and speed of the car. At what point in time the car will be at a point with a coordinate of 200m

The initial coordinate is 380 m, the vehicle speed is 20 m / s.

Let’s determine when the car gets to the point with the coordinate x = 200:

x = 380 – 20 * t = 200,

20 * t = 380 – 200 = 180, whence t = 9 s.

Answer: the car will get to the specified coordinate in 9 seconds after the start of movement.