### How high was the bridge

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Q. On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snohomish River below. The swimmers stepped off the bridge, and I estimated that they hit the water 1 s later.

1. How high was the bridge?

2. How fast were the swimmers moving when they hit the water?

3. What would the swimmers' drop time be if the bridge were twice as high?

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