A `30.0 kg` hammer, moving with speed `20.0ms^(-1)` strikes a steel spike `2.30 cm` in diameter. The hammer rebounds with speed `10.0ms^(-1)` after `0.110s.` What is the average strain in the spike during the impact.?

Explanation

To find the average strain in the steel spike during the impact of the hammer, we will follow these steps:

### Step 1: Calculate the Change in Momentum
The change in momentum (Δp) can be calculated using the formula:
\[ \Delta p = m(v_f - v_i) \]
where:
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