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Extra Challenge! 9. A commuter train can minimize the time t between two stations by accelerating (a1 = 0.1 m/s2) for a time t1, then undergoing a negative acceleration (a2 = -0.5 m/s2) by using his brakes for a time t2. Since the stations are only 1 km apart, the train never reaches its maximum velocity. Find the minimum time of travel t, and the time t1. 10. Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of 1.5 m above the ground. When you quickly move the nozzle away from the vertical, you hear the water striking the ground next to you for 2.0 s. What is the water speed as it leaves the nozzle?

Extra Challenge! 9. A commuter train can minimize the time t between two stations by accelerating (a1 = 0.1 m/s2) for a time t1, then undergoing a negative acceleration (a2 = -0.5 m/s2) by using his brakes for a time t2. Since the stations are only 1 km apart, the train never reaches its maximum velocity. Find the minimum time of travel t, and the time t1. 10. Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of 1.5 m above the ground. When you quickly move the nozzle away from the vertical, you hear the water striking the ground next to you for 2.0 s. What is the water speed as it leaves the nozzle?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Please answer question and just send me the paper solutions asap dont type the answer question 9 only And use the formula that is given dont use any other formula and use 9.81 for acceleration not 9.8 if required please solve it faster asap
Extra Challenge! 9. A commuter train can minimize the time t between two stations by accelerating (ai = 0.1 m/s?) for a time ti, then undergoing a negative acceleration (a2= -0.5 m/s2) by using his brakes for a time t2. Since the stations are only 1 km apart, the train never reaches its maximum velocity. Find the minimum time of travel t, and the time t1. 10. Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of 1.5 m above the ground. When you quickly move the nozzle away from the vertical, you hear the water striking the ground next to you for 2.0 s. What is the water speed as it leaves the nozzle?
Transcribed Image Text:Extra Challenge! 9. A commuter train can minimize the time t between two stations by accelerating (ai = 0.1 m/s?) for a time ti, then undergoing a negative acceleration (a2= -0.5 m/s2) by using his brakes for a time t2. Since the stations are only 1 km apart, the train never reaches its maximum velocity. Find the minimum time of travel t, and the time t1. 10. Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of 1.5 m above the ground. When you quickly move the nozzle away from the vertical, you hear the water striking the ground next to you for 2.0 s. What is the water speed as it leaves the nozzle?
Variables found Variable not Equation in equation in equation Ad, At, v, v Equation 1 At 2. %3D Equation 2 ý = ỷ + åAt V, V, å, At Ad Equation 3 Ad = vAt + 2. Ad, v, At, å At Equation 4 v? v + 2aAd V, V, a, Ad 1 Ad At Ad, v. At, å Equation 5
Transcribed Image Text:Variables found Variable not Equation in equation in equation Ad, At, v, v Equation 1 At 2. %3D Equation 2 ý = ỷ + åAt V, V, å, At Ad Equation 3 Ad = vAt + 2. Ad, v, At, å At Equation 4 v? v + 2aAd V, V, a, Ad 1 Ad At Ad, v. At, å Equation 5
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