Kinematics | Problem 1.3

Irodov I.E. - Problems in General Physics (1981)

PHYSICAL FUNDAMENTALS OF MECHANICS | Kinematics

Problem 1.3

A car starts moving rectilinearly, first with acceleration $$\omega = 5.0 \text{ m/s}^2$$ (the initial velocity is equal to zero), then uniformly, and finally, decelerating at the same rate $$\omega$$, comes to a stop. The total time of motion equals $$t = 25$$ s. The average velocity during that time is equal to $$\langle v \rangle = 72$$ km per hour. How long does the car move uniformly?