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Answer :
Final answer:
The acceleration of a rocket launched vertically upwards with a uniform acceleration, reaching a speed of 120 m/s in 8 seconds, is calculated to be 15 m/s².
Explanation:
To calculate the acceleration of a rocket that travels uniformly to rest, we can use the kinematic equation v = u + at, where v is the final velocity, u is the initial velocity (which is 0 m/s in this case since the rocket starts from rest), a is the acceleration, and t is the time.
Rearranging the equation to solve for acceleration, we get a = (v - u) / t. Plugging in the values given in the question, we have:
a = (120 m/s - 0 m/s) / 8.0 s = 15 m/s²
The acceleration of the rocket is 15 m/s².
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