A helium atom is moving with the velocity v of 201 - 15j m/s (where i – InterviewSolution

1.

A helium atom is moving with the velocity v of 201 - 15j m/s (where i and j are unit vectors). What is itsspeed?Select one:OnO a. 5 m/sb. 15 m/sO c. 25 m/sd. 35 m/s

Answer»

C) 25m/s

Step-by-step explanation:

RESULTANT VECTORS magnitude is given by

$\sqrt{a^{2} + b^{2} }$

This will give

$\sqrt{625 } = 25$

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