Suppose you wanted to reach Alpha Centauri (4.4 ly from the Solar system) in 100 years. How fast would you have to go, in km/hr? How many times faster is the speed you found in part A than the speeds of our fastest current spacecraft (around 50000 km/hr)?
Added by Charles R.
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The distance is given as 4.4 light-years (ly). We need to convert light-years to kilometers. 1 light-year ≈ 9.461 × 10¹² km So, the distance to Alpha Centauri is: \[ 4.4 \, \text{ly} \times 9.461 \times 10^{12} \, \text{km/ly} \] Show more…
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Suppose you wanted to reach Alpha Centauri (4.4 ly from the Solar system) in 100 years. How fast would you have to go, in km/hr? Express your answer using two significant figures. How many times faster is the speed you found in part A than the speeds of our fastest current spacecraft (around 50000 km/hr)?
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