Find The Pressure Exerted On The Roof By The Rain
During a rain storm rain comes straight down with a velocity vi 15 m s and hits the roof of a car perpendicularly.
Find the pressure exerted on the roof by the rain. 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. The mass of the rain per second that strikes the roof is 0 060 kg every second. 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.
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. Drops of rain fall perpendicular to the roof of a parked car during a rainstorm. 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. Please show the steps on how you got the answer thanks.
Homework equations delta p f delta t the attempt. A flat rectangular roof measures 7 5m by 4m 12mm of rain falls on the roof. Homework statement in a tropical rainstorm 40mm of rain fell in one hour. The mass of the rain per second that strikes the roof is 0 060 kg every second.
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. B find the mass of water that falls on the roof if 1centi cubic metre of water has a mass of 1gram express your answer in kilogram. A find the volume of water on the roof express your answer in centi cubic metre and cubic metre.