(Answered) An aircraft lands on a runway and brakes with a constant

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An aircraft lands on a runway and brakes with a constant acceleration of -1.50 m/s 2 . Its initial velocity when it touches ground is 42.0 m/s.

a) How far does the plane go on the runway before coming to a halt?

b) How much time does it take to come to a halt, from the moment of touchdown?

c) What is the displacement at t = 6.25 seconds after touchdown?

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