Aboeing 777 aircraft has a mass of 300,000 kg. at a certain instant during its landing, its speed is 27.0 m/s. if the braking force is 445,000 n, what is the speed of the airplane 10.0 s later?

Speed of the airplane 10.0 s later = 12.2 m/s

Explanation:

Mass of Boeing 777 aircraft = 300,000 kg

Braking force = 445,000 N

Deceleration

Initial velocity, u = 27 m/s

Time , t = 10 s

We have equation of motion, v =u +at

            v = 27 + (-1.48) x 10 = 27 - 14.8 = 12.2 m/s

Speed of the airplane 10.0 s later = 12.2 m/s

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