(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

theres two questions actually.

1) a boat increases its speed from 5.0 m/s to 7.5 m/s over a distance of 50.0m. what it the boat's acceleration?

2) within 4.0s of liftoff, a spacecraft that is uniformly accelerating straight upward from rest reaches an altitude of 4.50 x 10^2 m [up]

a) what is the spacecraft's acceleration

b)at what velocity is the spacecraft travelling when it reaches this altitude?

2. Relevant equations

for 1) i just need to rearrange vf^2 = vi^2 +2aΔd to find acceleration

for 2a) the same thing but with the equation, Δd=viΔt + 1/2aΔt^2

3. The attempt at a solution

ive tried rearranging the equation but i get stuck and i dont know what to do next. please help

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# Rearranging equations of accelerated motion

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