Part A Problem 2.54 What is the magnitude of the rocket\'s acceleration? A rocke

Question

Part A Problem 2.54 What is the magnitude of the rocket's acceleration? A rocket blasts off and moves straight upward from the launch pad with constant acceleration. After 2.9 s the rocket is at a height of 93 m. Express your answer using two significant figures A20 m/s Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Part B What is the direction of the rocket's acceleration? upward downward Submit My Answers Give Up Correct Part C What is its speed at this time? Express your answer using two significant figures.

Explanation / Answer

PartA) using the second equation of motion,

s = 0.5 at^2

93 = 0.5*a*2.9^2

a = 93*2/2.9^2

= 22 m/s^2

Partc) speed = at = 22*2.9 = 64 m/s

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