Question

Wind is blowing from the south at 10m/s but to a cyclist it appears to be blowing from east at 10m/s.Determine the velocity of the cyclist?

Answer 1

check the attachment

Answer 2

Answer:

here is u r answer

Explanation:

The velocity of the cyclist is  10 root 2

To find:

The velocity of cyclist.

Solution:

By using the Velocity addition formula,

         If a wind is blowing relative to the cyclist with velocity 10 m/s from east and wind is blowing relative to ground with velocity 10 m/s from south , then the velocity of the cyclist is relative to ground which equals to the vector sum.

s= v-u

Pythagorean Theorem

s2 =v2-u2    

s2=[10]2-[-10]2

s2=100+100     =200  

=10 root 2

And the cyclist is directed to the direction of north-east.