A powerful motorcycle can accelerate from rest to 24.8 m/s (55 mi/h) in only 5.90 s

To find the acceleration of the motorcycle, you can use the equation:

Acceleration = (final velocity - initial velocity) / time

In this case, the final velocity is 24.8 m/s, and the initial velocity is 0 m/s (since the motorcycle starts from rest). The time taken to reach this final velocity is 5.90 s.

Plugging these values into the equation, we can calculate the acceleration:

Acceleration = (24.8 m/s - 0 m/s) / 5.90 s

Acceleration = 24.8 m/s / 5.90 s

Acceleration ≈ 4.20 m/s²

Therefore, the motorcycle has an acceleration of approximately 4.20 m/s².