How to Solve a Spaceship Calculus Problem?

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SUMMARY

The discussion focuses on solving a calculus problem involving a spaceship accelerating from rest at a rate of 2t / sqrt(1 + t²) ms⁻². The objective is to determine the time required to reach the speed of light (3 x 10⁸ ms⁻¹). The correct approach involves integrating the acceleration function with respect to time to obtain velocity, followed by algebraic manipulation to solve for time. The initial estimate of 5 years is questioned, emphasizing the need for precise calculations.

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  • Understanding of calculus, specifically integration and differentiation.
  • Familiarity with kinematic equations and concepts of acceleration and velocity.
  • Knowledge of the speed of light as a constant (3 x 10⁸ ms⁻¹).
  • Ability to perform algebraic manipulations to solve equations.
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  • Study integration techniques for functions involving square roots and rational expressions.
  • Learn about kinematic equations in physics, particularly those related to acceleration and velocity.
  • Explore the implications of relativistic physics when approaching the speed of light.
  • Practice solving similar calculus problems involving motion and acceleration.
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if a spaceship accelerates, from rest at time t=0, at a rate of 2t / sqrt(1 + t2) ms-2 at time t, calculate in years to 1 significant figure how long it would take to reach the speed of light 3x108 ms-1?

i got an answer of 5 years, is this correct, but i have made a mess of my workings, what is the best way to answer this question in the shortest time period?

many thanks
 
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How did you work it out? It's pretty straightforward, isn't it?
 


This is a very straight forward problem.

All you need to know is that you get a velocity when you integrate acceleration respect to time.

After that, it's all algebra. plug-in, and solve for t.
 

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