A Toy Rocket Is Launched Vertically from Ground Level at Time

question 409

Multiple Choice

A toy rocket is launched vertically from ground level at time t = 0.00 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket
Has risen to 81 m and acquired an upward velocity of 40 m/s. The rocket continues to rise with Insignificant air resistance in unpowered flight, reaches maximum height, and falls back to the Ground. The upward acceleration of the rocket during the burn phase is closest to

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