A rocket ship in free space moves with constant acceleration 32 ft/sec^2. (a) If it starts from rest, how long will it take to acquire a speed one-tenth that of light? (b) How far will it travel in doing so?(adsbygoogle = window.adsbygoogle || []).push({});

So we are given [itex] a_{x} = 32 \frac{ft}{sec^{2}} [/itex], and [itex] v_{x}_{0} = 0 [/itex]. One-tenth the speed of light is [itex] 1.86\times 10^{4} \frac{miles}{sec} [/itex]. For the first part would I use [itex] v_{x} = v_{x}_{0} + a_{x}t [/itex]? And for the second part I could use [itex] x = x_{0} + v_{x}_{0}t + \frac{1}{2}a_{x}t^{2} [/itex]

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Rocket speed of light question

**Physics Forums | Science Articles, Homework Help, Discussion**