Find The Pressure Exerted On The Roof By The Rain

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.

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. Please show the steps on how you got the answer thanks. Drops of rain fall perpendicular to the roof of a parked car during a rainstorm. A find the volume of water on the roof express your answer in centi cubic metre and cubic metre.

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. Homework equations delta p f delta t the attempt. The pressure exerted by the falling rain on the roof rises by a factor of. A assuming the drops come to rest after striking the roof find the average force exerted by the rain on the roof.

We can find the pressure exerted on the face using a re arranged bernoulli equation. A flat rectangular roof measures 7 5m by 4m 12mm of rain falls on the roof. 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. The mass of the rain per second that strikes the roof is 0 060 kg every second.

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. Homework statement in a tropical rainstorm 40mm of rain fell in one hour. During a rain storm rain comes straight down with a velocity vi 15 m s and hits the roof of a car perpendicularly.