jordanbright2120 jordanbright2120
  • 21-05-2020
  • Physics
contestada

A skier starting from rest accelerates in a straight line down a 43,000 m slope at 1 m/s. How fast were they moving after 5 s?

Respuesta :

mavila18
mavila18 mavila18
  • 22-05-2020

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

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