A rainstorm drops rain to a depth of 1.4 cm over an area of 15 km2 in a period of s. Take the terminal velocity of a raindrop to be 10 m/s. What is the vertically downward momentum of the rain that falls per second? Take the density of water to be kg/m3.
What is the average magnitude of the momentum of a sprinter of mass 55 kg who runs the 100-meter dash in 9.83 s?
Two canoers, each of mass 65 kg, paddle in a single canoe of mass 52 kg. The canoe moves at a velocity of 1.5 m/s with respect to the water, in the same direction as the water. The water flows at a velocity of 3.2 m/s with respect to a stretch of land. What is the momentum of the canoe with respect to the stretch of land?