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A particle has a displacement of 12 m to...

A particle has a displacement of 12 m towards east and 6 m towards north and then 8 m vertically upwards. The magnitude of the sum of these displacements is

A

zero

B

12 m

C

15.62 m

D

18.3 m

Text Solution

Verified by Experts

The correct Answer is:
C
`vec r =12 hati +6hatj +8hatk`
`therefore r =sqrt((12)^(2)+(6)^(2)+(8)^(2))`
`=sqrt(144+36+64)=sqrt(244)=15.62m`
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