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89.6 ft Fig. P11.36 Fig. P11.35 11.36 A group of students launches a model rocket in the vertical direction. Based on tracking data, they determine that the altitude of the rocket was 89.6 ft at the end of the powered portion of the flight and that the rocket landed 16 s later. Knowing that the descent parachute failed to deploy so that the rocket fell freely to the ground after reaching its maximum altitude and assuming that g = 32.2 ft/s², determine (a) the speed v₁ of the rocket at the end of powered flight, (b) the maximum altitude reached by the rocket.

89.6 ft Fig. P11.36 Fig. P11.35 11.36 A group of students launches a model rocket in the vertical direction. Based on tracking data, they determine that the altitude of the rocket was 89.6 ft at the end of the powered portion of the flight and that the rocket landed 16 s later. Knowing that the descent parachute failed to deploy so that the rocket fell freely to the ground after reaching its maximum altitude and assuming that g = 32.2 ft/s², determine (a) the speed v₁ of the rocket at the end of powered flight, (b) the maximum altitude reached by the rocket.

Structural Analysis
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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11.36
89.6 ft Fig. P11.36 (b) the take-off velocity VB. 000000 60 Fig. P11.33 11.34 A motorist is traveling at 54 km/h when she observes that a traffic light 240 m ahead of her turns red. The traffic light is timed to stay red for 24 s. If the motorist wishes to pass the light without stopping just as it turns green again, determine (a) the required uniform decel- eration of the car, (b) the speed of the car as it passes the light. 54 km/h 00 Fig. P11.34 11.35 Steep safety ramps are built beside mountain highways to enable vehicles with defective brakes to stop safely. A truck enters a 750-ft ramp at a high speed vo and travels 540 ft in 6 s at constant decelera- tion before its speed is reduced to vo/2. Assuming the same constant deceleration, determine (a) the additional time required for the truck to stop (b) the additional distance traveled by the truck. RAHINE 00 B 240 m Fig. P11.35 11.36 A group of students launches a model rocket in the vertical direction. Based on tracking data, they determine that the altitude of the rocket was 89.6 ft at the end of the powered portion of the flight and that the rocket landed 16 s later. Knowing that the descent parachute failed to deploy so that the rocket fell freely to the ground after reaching its maximum altitude and assuming that g = 32.2 ft/s², determine (a) the speed v₁ of the rocket at the end of powered flight, (b) the maximum altitude reached by the rocket. 1-9 38 ++ Fig. P11.37 11.38 As and first velc 11.39 Aute 0.75 in th 1.40 bus deter Fig. P11.39 11.40 In a travel accele and H accele
Transcribed Image Text:89.6 ft Fig. P11.36 (b) the take-off velocity VB. 000000 60 Fig. P11.33 11.34 A motorist is traveling at 54 km/h when she observes that a traffic light 240 m ahead of her turns red. The traffic light is timed to stay red for 24 s. If the motorist wishes to pass the light without stopping just as it turns green again, determine (a) the required uniform decel- eration of the car, (b) the speed of the car as it passes the light. 54 km/h 00 Fig. P11.34 11.35 Steep safety ramps are built beside mountain highways to enable vehicles with defective brakes to stop safely. A truck enters a 750-ft ramp at a high speed vo and travels 540 ft in 6 s at constant decelera- tion before its speed is reduced to vo/2. Assuming the same constant deceleration, determine (a) the additional time required for the truck to stop (b) the additional distance traveled by the truck. RAHINE 00 B 240 m Fig. P11.35 11.36 A group of students launches a model rocket in the vertical direction. Based on tracking data, they determine that the altitude of the rocket was 89.6 ft at the end of the powered portion of the flight and that the rocket landed 16 s later. Knowing that the descent parachute failed to deploy so that the rocket fell freely to the ground after reaching its maximum altitude and assuming that g = 32.2 ft/s², determine (a) the speed v₁ of the rocket at the end of powered flight, (b) the maximum altitude reached by the rocket. 1-9 38 ++ Fig. P11.37 11.38 As and first velc 11.39 Aute 0.75 in th 1.40 bus deter Fig. P11.39 11.40 In a travel accele and H accele
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