Question
A cyclist who is travelling directly to the East at 8 kilometres per hour
finds that the wind appears to blow directly from the North. She then continues to
travel East but she doubles her speed to 16 kilometers per hour and the wind then
appears to blow from the North-East. Find the actual velocity of the wind.
finds that the wind appears to blow directly from the North. She then continues to
travel East but she doubles her speed to 16 kilometers per hour and the wind then
appears to blow from the North-East. Find the actual velocity of the wind.
Answers
DonHo
Vector makes a Triangle
a^2+b^2=c^2
a=b=8 km/h
8^2+8^2=c^2
solve for C
a^2+b^2=c^2
a=b=8 km/h
8^2+8^2=c^2
solve for C