The car, being at a point with a coordinate of 200 m, began to brake and stopped 10 seconds later.

The car, being at a point with a coordinate of 200 m, began to brake and stopped 10 seconds later. What is the projected acceleration of a car if its initial speed is 15 m / s and it is moving towards the origin? What is the projection of the vehicle’s movement during braking? What is the coordinate of the car when it stops?

Decision:
a = -1.5 m / s2
projection a = 1.5m / s2
S1 = 15 * 10 -1.5 * 100: 2 = 150 -75 = 75 m
x2 (m) = 200 – 75 = 125 m
Answer: 125 m; 1.5 m / s2; 75 m