Grade 12General Physics
which of the following vectors cannot be equal to the resultant of 5 and 10 option A.2 B.5 C.7 D.8
1 Answer
Arun
Dear Nimesh
(R²) = 5² + 10² + 2* 5* 10 cos @
R² = 125 + 100 cos @
Maximum value of R² = 125 + 100 = 225
Rmax = 15
Minimum value of R² = 125 - 100 = 25
R² = 25
R = 5
Hence
Reaultant R can't be 2.
Hence option A is correct.
Regards
Arun (askIITians forum expert)
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