A water pipe in a building delivers 1000 liters (with mass 1000 kg) of water per second. The water is moving through the pipe at 1.4 m/s. The pipe has a 90° bend, and the pipe will require a supporting structure, called a thrust block, at the bend, as shown. We can use the ideas of momentum and impulse to understand why. Each second, 1000 kg of water moving at νx = 1.4 m/s changes direction to move at νy = 1.4 m/s. a. What are the magnitude and direction of the change in momentum of the 1000 kg of water? b. What are the magnitude and direction of the necessary impulse? c. This impulse takes place over 1.0 s. What is the necessary force?
A water pipe in a building delivers 1000 liters (with mass 1000 kg) of water per second. The water is moving through the pipe at 1.4 m/s. The pipe has a 90° bend, and the pipe will require a supporting structure, called a thrust block, at the bend, as shown. We can use the ideas of momentum and impulse to understand why. Each second, 1000 kg of water moving at νx = 1.4 m/s changes direction to move at νy = 1.4 m/s. a. What are the magnitude and direction of the change in momentum of the 1000 kg of water? b. What are the magnitude and direction of the necessary impulse? c. This impulse takes place over 1.0 s. What is the necessary force?
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A water pipe in a building delivers 1000 liters (with mass 1000 kg) of water per second. The water is moving through the pipe at 1.4 m/s. The pipe has a 90° bend, and the pipe will require a supporting structure, called a thrust block, at the bend, as shown. We can use the ideas of momentum and impulse to understand why. Each second, 1000 kg of water moving at νx = 1.4 m/s changes direction to move at νy = 1.4 m/s.
a. What are the magnitude and direction of the change in momentum of the 1000 kg of water?
b. What are the magnitude and direction of the necessary impulse?
c. This impulse takes place over 1.0 s. What is the necessary force?
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of water?
b. What are the magnitude and direction of the necessary impulse?
c. This impulse takes place over 1.0 s. What is the necessary force?
Figure P9.70
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