With what acceleration should a car moving at a speed of 36 km / h brake to stop after 10 seconds?

а = (V – V0) / t, where V is the final speed of movement, V0 is the initial speed of movement, t is the time of movement.

If the car is stopped, its final speed is zero:
V = 0.

Let’s translate the initial speed of the vehicle in m / s:
V0 = 36 km / h = 36 * 1000/3600 = 10 m / s.

a = (0 – 10) / 10 = – 1 m / s2.

Answer: to stop after 10 seconds, the car must move with an acceleration of -1 m / s2.