Kinematics Question 571

Question: If a unit vector is represented by 0.5i^+0.8j^+ck^, then the value of c is

Options:

A) 1

B)0.8

C) 0.11

D)0.01

Show Answer

Answer:

Correct Answer: C

Solution:

[c] 0.52+0.82+c2=1 orc=10.89=0.11



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