During the ascent uphill, the speed of a cyclist moving in a straight line and uniformly accelerated changed in 8 s from 5 m / s

During the ascent uphill, the speed of a cyclist moving in a straight line and uniformly accelerated changed in 8 s from 5 m / s to 10.8 km / h. What is the acceleration module?

Acceleration is sought by the formula: a = (U-U0) / t. Let’s translate everything into SI (10.8 km h = 3m s) and substitute it into this formula: a = (5-3) /8=0.25m/s^2. Since they are asking for a module, you need to subtract the higher speed from the lower one.