Answer to Question #194534 in Mechanical Engineering for Hagos

Question #194534

An aircraft touches down at a speed of 200 km/hour and the brakes are applied. If the aircraft deceleration is given by š‘Ž = āˆ’0.05 š‘£ (using units of metres and seconds), how far will it have travelled along the runway by the time its speed drops to 20 km/hour?Ā 


1
Expert's answer
2021-05-18T17:20:02-0400
"a=-kv\\\\v-v_0=-kL\\\\\\\\20-200=-(3.6)(0.05)L\\\\L=1000\\ m=1\\ km"


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