The Two Dams Are Identical with the Exception That the Water

question 7

Multiple Choice

The two dams are identical with the exception that the water reservoir behind dam A extends twice the horizontal distance behind it as that of dam B.Which one of the following statements regarding these dams is correct?

• A)The force exerted by the water on dam A is greater than that on dam B.
• B)The force exerted by the water on dam B is greater than that on dam A.
• C)Dam A is more likely to collapse than dam B if the water level rises.
• D)Dam B is more likely to collapse than dam A if the water level rises.
• E)The horizontal distance of the water behind the two dams does not determine the force on them.