Answered

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Kinematics - A airplane starts from rest and must reach 20 m/s to take off. If the plane can accelerate at 1.2 m/s^2, find the minimum length of the runway. Pick the closest answer. A) 320 m B) 240 m C) 167 m D) 8.3 m

Sagot :

The minimum length of the runway is closer to 167 m. Hence, option (C) is correct.

What is acceleration?

Acceleration is the rate at which a velocity changes over time. It qualifies as a vector quantity because it possesses both direction and magnitude. Meter/second^2 (m/s^2) is the SI unit of acceleration.

Given that acceleration of the plane: a = 1.2 m/s^2.

Final speed of the plane from rest: v = 20 m/s.

Hence, required minimum length of the runway = v²/2a

= 20²/(2×1.2) m

= 166.67 meter.

Learn more about acceleration here:

brainly.com/question/12550364

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