A rocket sled is to be kept at a constant velocity of 100 m/s by lowering a scoop into a water trough. The scoop is 0.3 m wide; it deflects the water through 150°. a) To what depth, D, must the scoop be lowered in order to keep the sled at a constant velocity if the rocket sled is producing exhaust at 2,000 m/s relative to the sled over an area of 2 m2. b) If the sled weighs 10,000 kg, what is the vertical force on the rail? Use p = 1000 kg/m³ and u= 1.12 x 103 Ns/m? for the water and p = 0.6 kg/m³ and u = 1.5 x 10$ Ns/m² for the rocket exhaust. You can assume uniform flow and the system to be in steady conditions. Also neglect the friction of the sled on the rails, and neglect any change in mass caused by the rocket using up fuel. Rocket Sled Scoop 30° 2 m? Water Trough Rail

A rocket sled is to be kept at a constant velocity of 100 m/s by lowering a scoop into a water trough. The scoop is 0.3 m wide; it deflects the water through 150°. a) To what depth, D, must the scoop be lowered in order to keep the sled at a constant velocity if the rocket sled is producing exhaust at 2,000 m/s relative to the sled over an area of 2 m2. b) If the sled weighs 10,000 kg, what is the vertical force on the rail? Use p = 1000 kg/m³ and u= 1.12 x 103 Ns/m? for the water and p = 0.6 kg/m³ and u = 1.5 x 10$ Ns/m² for the rocket exhaust. You can assume uniform flow and the system to be in steady conditions. Also neglect the friction of the sled on the rails, and neglect any change in mass caused by the rocket using up fuel. Rocket Sled Scoop 30° 2 m? Water Trough Rail

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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