The relative velocity of the jet entering the bucket is the difference between the jet speed and the bucket speed.
\[ V_{r1} = V_j - V_b \]
where \( V_j \) is the jet speed and \( V_b \) is the bucket speed.
\[ V_{r1} = 42 \, \text{m/s} - 20 \, \text{m/s} = 22 \,
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