If the acceleration is 0.4 m / S2 and the slope is 30 m long, the time required for the cyclist to pass the slope is 10 minutes______ s．

According to the velocity displacement formula x = v0t + 12at2, 30 = 5T − 12 × 0.4t2. The solution is T1 = 10s, T2 = 15s (this time is the time to rise to the highest point and return, rounding off), so the answer is: 10

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