A helicopter lifts off at a constant acceleration of 2.3 m/s² upward.When after liftoff is the speed of the above helicopter 10.0 m/s? A)2.8 s B)2.9 s C)4.0 s D)4.3 s

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The Answer of A helicopter lifts off at a constant acceleration of 2.3 m/s² upward.When after liftoff is the speed of the above helicopter 10.0 m/s? A)2.8 s B)2.9 s C)4.0 s D)4.3 s

A Helicopter Lifts Off at a Constant Acceleration of 2