When is the acceleration of a bike larger, when it is suddenly stopped or when it is raced?

Explanation

To determine when the acceleration of a bike is larger—when it is suddenly stopped or when it is raced—we can analyze the situation using the formula for acceleration.

### Step-by-Step Solution:

1. **Understanding Acceleration**:
Acceleration (a) is defined as the rate of change of velocity (v) over time (t). Mathematically, it can be expressed as:
\[
a = \frac{\Delta v}{\Delta t}
...