8 Wind with a velocity 100 km h blows normally against one

Last updated: 6/13/2023

8 Wind with a velocity 100 km h blows normally against one of the walls of a house with an area of 108 m Calculate the force exerted on the wall if the air moves parallel to the wall after striking it and has a density of 1 2 kg m ANSWERS 1 a Force will be along x direction on the wall 2my 1 b 2mv cos cos 2 8 10 Ns 2s 5 a 12 Ns b 4 8 ms c 2 8 ms d 2 40 N 3 0 75 Ns 7 5 N 4 150 3N