High School

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A rocket blasts off. In 10.0 seconds, it reaches 10,000 ft and is traveling at 3600 mph. Assuming the direction is upward, calculate the acceleration. (Hint: The rocket is not under constant acceleration.)

Answer :

Final answer:

To calculate the acceleration of a rocket in this scenario, we need to know the function describing its motion since the acceleration is not constant. However, we can state that acceleration is the change in velocity over time, and without additional details, we can't provide an exact value for acceleration.

Explanation:

The question asks us to calculate the acceleration of a rocket after it blasts off, specifically how much it accelerates in the first 10 seconds when it reaches 10,000 ft, traveling at 3600 mph. Given the non-constant acceleration hint, we can infer that we are dealing with a change in velocity over a period of time, taking into account the change in mass as the rocket expends fuel.

To find the acceleration, we need to convert the units from feet to meters and miles per hour to meters per second. 10,000 ft is approximately 3048 meters, and 3600 mph is about 1609.34 meters per second. Using the formula for acceleration (a = Δv/Δt) where Δv is the change in velocity and Δt is the change in time, we would take the final velocity and subtract the initial velocity (which is 0 since the rocket starts from rest), and then divide by the time interval of 10 seconds. However, due to the hint that the acceleration is not constant, a simple division would not provide the accurate acceleration at any specific moment.

Instead, we would typically construct a velocity-time graph and calculate the slope of the line at different intervals or use calculus if the function describing the motion is known, which requires more details about the motion of the rocket.

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