With an equally slow motion of the car for 5 s, its speed decreased from 15 to 10 m / s.

With an equally slow motion of the car for 5 s, its speed decreased from 15 to 10 m / s. What is the vehicle acceleration module?

Given:

v0 = 15 m / s – initial speed;

v1 = 10 m / s – speed at time t;

t = 5 s.

It is required to find a – the vehicle acceleration module.

a = (v0 – v1) / t = (10 – 15) / 5 = -5 / 5 = -1 m / s ^ 2. Since a modulus is required, a = 1 m / s ^ 2.

Correct answer: a) 1 m / s ^ 2.