A river (1) passes over a drowned weir as shown, leaving at a new condition (2). Neglect

A river (1) passes over a €œdrowned€ weir as shown, leaving at a new condition
(2). Neglect atmospheric pressure and assume hydrostatic pressure at
(1) and
(2). Derive an expression for the force F exerted by the river on the obstacle. Neglect bottom friction.

Transcribed Image Text:

Width b into paper t