Our current rockets would take tens of thousands of years to get to even the nearest star, 4.3 ly away. If we invent a spacecraft that can travel 0.1 the speed of light, how long would it take to travel to the nearest star? - 4.3 ye

- 3.8 x 10^14 yr

- 43 ly

- 1.9 x 10^7 yr

It will take the rocket 43 light years to get to the nearest star

Explanation:

1 light year = 9.46 * 10¹⁵ m

speed of light = 3.0 * 10⁸ m/s

In one year, light travels a distance of 1 light year.

A rocket with that travels with a speed 0.1 * the speed of light will travel the distance of one light year in 1/0.1 = 10 light years

Therefore, it will take the rocket 10 * 4.3 light years to get to the star = 43 light years.

43 light years = 43 * 9.46 * 10¹⁴ m = 4.07 * 10¹⁷ m

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i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!