Question

If a unit vector is represented by 0.5 I cap + 0.8j cap + c k cap . then the value of c is?​

Answer 1

Answer:

√0.11

Explanation:

The magnitude of the unit vector will be 1.

So magnitude of give vector=Mag.of unit vector

That is,√0.5²+0.8²+c²=1

0.89+c²=1

c²=0.11

c√0.11

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