A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 56.0 m/s2, until the fuel is used up after 12.40 s. What is the speed of the rocket at that moment? (Neglect air resistance.)   From the time the fuel runs out, how long does it take for the rocket to reach its maximum height? (Use g  =  9.8 m/s2)______ What is the speed of the rocket when it hits the ground?________

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Projectile Motion