Asked by jiiiiiiiiii
EXAM STYLE QUESTION
An aircraft is at rest at one end of a runway with its engine idling. The runway is 2.2km long. The aircraft then accelerates along the runway at an acceleration of 2.5ms-2 until it reaches its take off speed of 75ms-1
a)Calculate:
i)the time taken for the aircraft to reach its take-off speed (2 marks)
ii)the distance travelled in this time (2 marks)
b)As the aircraft reaches its takeoff speed, a warning light alerts the pilot to a possible fault in one of the engines.If the brakes are fully applied the maximum deceleration of the aircraft is 4.0ms-2. Before the pilot can take any action 2.5s have already elapsed, during which time the aircraft is continuing to fly at its take off speed. Determine whether the aircraft can be brought to rest within the remaining length of the runway? (5 marks)
Please help I am confused and need lots of clear detailled help with method all shown. Please dont abbreviate and use the actual words at all times
An aircraft is at rest at one end of a runway with its engine idling. The runway is 2.2km long. The aircraft then accelerates along the runway at an acceleration of 2.5ms-2 until it reaches its take off speed of 75ms-1
a)Calculate:
i)the time taken for the aircraft to reach its take-off speed (2 marks)
ii)the distance travelled in this time (2 marks)
b)As the aircraft reaches its takeoff speed, a warning light alerts the pilot to a possible fault in one of the engines.If the brakes are fully applied the maximum deceleration of the aircraft is 4.0ms-2. Before the pilot can take any action 2.5s have already elapsed, during which time the aircraft is continuing to fly at its take off speed. Determine whether the aircraft can be brought to rest within the remaining length of the runway? (5 marks)
Please help I am confused and need lots of clear detailled help with method all shown. Please dont abbreviate and use the actual words at all times
Answers
Answered by
bobpursley
http://physics-ref.blogspot.com/2014/10/physics-9702-doubts-help-page-1.html
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