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NEET Class neet Answered

 An object of mass (50.0 0.5)g is moving with speed (40.0 0.2)cm/s. Find its kinetic energy with error. (1) 4 4.00 10erg 2% (2) 4 2.00 10erg 2% (3) 4 4.00 10erg 1% (4) 4 8.00 10erg 1%  
Asked by vishvavinayagam | 24 May, 2020, 09:30: AM
answered-by-expert Expert Answer
K E equals 1 half m v squared
P e r c e n t a g e space e r r o r equals open parentheses fraction numerator increment m over denominator m end fraction plus 2 fraction numerator increment v over denominator v end fraction close parentheses cross times 100
P e r c e n t a g e space e r r o r equals open parentheses fraction numerator 0.5 over denominator 50 end fraction plus 2 fraction numerator 0.2 over denominator 40 end fraction close parentheses cross times 100
P e r c e n t a g e space e r r o r equals 2 percent sign
K E equals 40 e r g space 2 percent sign e r r o r
Answered by Utkarsh Lokhande | 24 May, 2020, 06:39: PM
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