Particle A has velocity (8i - 3j)ms^-1 and particle B has velocity (15i - 8j)ms^-1.
A) Find the speed of B
B)Find the velocity of B relative to A
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A) Speed is just the magnitude of the velocity vector:
So, if particle B has velocity (15i - 8j) , the speed is:
B) Relative velocity is just the difference of the velocities, so the velocity of B relative to A is:
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