The change in the velocity is 11 m/s - 7m/s = 4 m/s.

The time is 2 seconds.

Recall that Acceleration = Change in velocity/time  

Substituting the known values we get the acceleration =

\frac{4 \frac{m}{s}}{2s} = 2 \frac{m}{s^{2}}  

So the cyclist's acceleration is 2 \frac{m}{s^{2}}

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Kinematic Equations: Sample Problems and Solutions

The variables include acceleration (a), time (t), displacement (d), final velocity (vf) , and ... This page demonstrates the process with 20 sample problems and ... Names to Formulas · Names to Formulas 2 · Nuclear Decay · Particles, Words, and ... These problems allow any student of physics to test their understanding of the ...

For more information, see Kinematic Equations: Sample Problems and Solutions