Kinematics | Problem 1.3

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

PHYSICAL FUNDAMENTALS OF MECHANICS | Kinematics

Problem 1.3

Task:

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?

Solution: