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IF the error in the measurement of ...

IF the error in the measurement of mass and speed of a particle are 0.1% and 0.2% respectively then the errror in the determintation of kinetic energy of the particle will be

A

`0.3%`

B

`0.4%`

C

`0.5%`

D

`0.6%`

Text Solution

Verified by Experts

Total distance travelled `=x +x = 2x km `
total time taken `=(x) /( 36 ) +(x) ( 45 ) = x xx ( 5+ 4) /( 180 ) = x . (1) /( 20 ) h `
`therefore ` average speed `= ( 2x ) /( x. (1)/(20 ) = 40 //h`
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