Guest

The longer the board and the shallower the water, the farther will a surfboard skim across the water. Explain. (See "The Surf Skimmer," by R. D. Edge, American Journal of Physics, July 1968, p. 630.)

The longer the board and the shallower the water, the farther will a surfboard skim across the water. Explain. (See "The Surf Skimmer," by R. D. Edge, American Journal of Physics, July 1968, p. 630.)

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
8 years ago
The shallow water exerts less pressure to the board. Thus, the pressure difference just above the surfboard and below the water us also less. The lift force acting on the board is pressure times the area of the board. A longer board has less cross-sectional area. The effect is that the lift force acting on the board is less. This makes the board to offer less resistance. Therefore, the surfboard skim can move farther across the water.

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free