Can any1 help me in 11 phy question... The percentage error in the momentum is 100% Wt is the percentage error in the kinetic energy??

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Jane Share
Feb 7, 2018

Kinetic energy (#E#) of a particle with mass #m# having momentum #P# is related as,

#E= P^2/(2m)#

As, #m# is constant,

So,we can write,

#(delta E)/E = 2 *(delta P)/P#

Given, #(delta P)/P *100 =100#

So, #(delta E)/E *100 = 2*100 =200#

So,percentage error in kinetic energy will be #200#

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