Find The Pressure Exerted On The Roof By The Rain

The drops strike the roof with a speed of 15 m s and the mass of rain per second striking the roof is 0 071 kg s.

Find the pressure exerted on the roof by the rain.

A find the volume of water on the roof express your answer in centi cubic metre and cubic metre. Homework statement in a tropical rainstorm 40mm of rain fell in one hour. Steady rain giving 5 mm an hour turns suddenly into a downpour 20 mm an hour and the speed of rain drops falling vertically on to a flat roof simultaneously doubles. Drops of rain fall perpendicular to the roof of a parked car during a rainstorm.

Assuming that the rain comes to rest upon striking the car vf 0 m s find the average force exerted by the rain on the roof during a 3 second time interval. Please show the steps on how you got the answer thanks. Assuming that the raindrops struck an adequately drained roof normally with an average speed of 10m s find the pressure exerted on the roof by the rain. The mass of the rain per second that strikes the roof is 0 060 kg every second.

A flat rectangular roof measures 7 5m by 4m 12mm of rain falls on the roof. Assuming that the rain comes to rest upon striking the car vf 0m s find the average force exerted by the rain on the roof during a 3 second interval. Where f wind is the force acting on the gutter due to the wind ρ is the density of air v is max wind speed l is the exposed gutter edge length and w is the width of the roof. We can find the pressure exerted on the face using a re arranged bernoulli equation.

A assuming the drops come to rest after striking the roof find the average force exerted by the rain on the roof. The pressure exerted by the falling rain on the roof rises by a factor of. During a rain storm rain comes straight down with a velocity vi 15 m s and hits the roof of a car perpendicularly.