What is the speed of a bobsled whose distance-time graph indicates that it traveled 123m in 28s?

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An electrical short cuts off all power to a submersible diving vehicle when it is a distance of 28 m below the surface of the ocean. The crew must push out a hatch of area 0.70 m2 and weight 200 N on the bottom to escape. If the pressure inside is 1.

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You observe someone pulling a block of mass 41 kg across a low-friction surface. While they pull a distance of 5 m in the direction of motion, the speed of the block changes from 5 m/s to 6 m/s.

What is the speed of a bobsled whose distance-time graph indicates that it traveled 123m in 28s?