A car moving at a speed of 108 km / h was forced to stop in 6 seconds with what acceleration the car was moving.

Initial data: V1 (speed of the vehicle in question) = 108 km / h (in SI V1 = 30 m / s); t (duration of forced braking) = 6 m / s2.

The acceleration of the vehicle under consideration during forced braking is determined by the formula: a = (V2 – V1) / t.

Let’s calculate: a = (0 – 30) / 6 = -5 m / s2.

Answer: Under forced braking, the car in question was moving with an acceleration of -5 m / s2.