Question

TASK 1: Downhill RacerA snowboardertravels 105 metersin 7 secondsA skier travels for4 seconds andcovers 72 meters.Who is faster, the snowboarder or the skier? Explain how you know who is faster.

Answer 1

The speed of skier is,

$\begin{gathered} S_{sk}=\frac{72m}{4s} \\ =\frac{18m}{s} \end{gathered}$

The speed of the snowboarder is,

$\begin{gathered} S_{sn}=\frac{105m}{7s} \\ =\frac{15m}{s} \end{gathered}$

Thus, the skier is faster.