Answer:
5m/s
Explanation:
The skier accelerates at 1 m/s, then, the acceleration is:
[tex]a=1\frac{m}{s^2}[/tex]
to find the speed after 5 seconds you use the following formula:
[tex]a=\frac{v-v_o}{t}[/tex]
but vo = 0m/s because the skier is at rest at the beginning.
You do v the subject of the formula:
[tex]v=at=(1\frac{m}{s^2})(5s)=5\frac{m}{s}[/tex]
hence, the velocity is 5m/s