Question

PROBLEM I. While walking around Crater Lake you notice a fallen log (cylinder) partially blocking a stream of water into the lake. The log, with diameter D and length L, creates a dam between two pools of still water with different depths as shown in the picture. (Ignore the beaver) Il . N A. What is an analytical expression for the horizontal force due to the fluid on the left? yD2L o ŽYTDL LYDL

Answer 1

& Horizontal force = Pressure at centre of body x projected Area. a) Feeft = No) x (DxL) DxL= project Area, b) Fright - rx ( 2 ) x + 2 + ( x ) . net force (Fnet) = Feeft - Fright- & bh-ro 2 O Feeft acts at 2D & Exer Fright acts at I from free surface Correct option. (b) & (c) are true. : If you have any doubt Please ask ģ will reply ASAP. If you find this helpfult" PLEASE LIKE. THANK you.