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Given that p=4i+3j, find the unit vector in the dire...

Given that p=4i+3j, find the unit vector in the direction of p.

A.

13(4i+3j)

B.

13(3i+4j)

C.

15(3i+4j)

D.

15(4i+3j)

Correct answer is D

ˆn=p|p|

where ˆn is the unit vector in the direction of p.

|p|=42+32=25=5

ˆn=15(4i+3j)