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CBSE Class 11-science Answered

u=3i+4j     IuI= square root of 9 plus 16 end root = square root of 25  = 5 a= 0.3i+0.4j     IaI= square root of 0.09 plus 0.16 end root =square root of 0.25 end root = 0.5 t= 5 seconds v= u+at            v= 5 + 0.5(10)   = 5+5  =>  v=10 units INCORRECT or CORRECT?
Asked by sagarnirmal0003 | 06 Oct, 2020, 12:29: PM
answered-by-expert Expert Answer
u=3i+4j
a=0.3i+0.4j
v=u+at
v=3i+4j+(0.3i+0.4j)(5)
v=4.5i+6j
v equals square root of 4.5 squared plus 6 squared end root v equals 7.5 m divided by s
Answered by Utkarsh Lokhande | 06 Oct, 2020, 03:20: PM
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