In: Physics
Two friends, Barbara and Neil, are out rollerblading. With respect to the ground, Barbara is skating due south at a speed of 3.5 m/s. Neil is in front of her. With respect to the ground, Neil is skating due west at a speed of 3.0 m/s. Find Neil's velocity ((a) magnitude and (b) direction relative to due west, as seen by Barbara.
Hi,
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PART (a):
Please refer the figure below to understand the concept easier:
From figure,
is Velocity of Neil with respect to ground (m/s).
is Velocity of Barbara with respect to ground (m/s).
We know that, Velocity of Neil with respect to Barbera is given by,
Magnitude of Velocity of Neil with respect to Barbera is given by,
Direction relative to due west is given by,
Where, is the angle between and
due west.
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