P. 4760. The speed of a car travelling on a highway is \(\displaystyle v_0\). At a certain instant the speed of the car is started to vary uniformly, and from that instant the first 84 m is covered in 3 s, and the next 84 m is covered in 4 s.
Determine the initial speed of the car \(\displaystyle v_0\), and its acceleration \(\displaystyle a\).
Deadline expired on 10 November 2015.