Question

the percentage errors in the measurement of mass mand velocity v of a body are 1.5% and 2%
respectively, find the percentage errors in the measurement of its momentum p and kinetic energy​

Answer 1

Answer:

Mass=1.5%

velocity=2%

momentum =mass * velocity

p =1.5 + 2 %

p = 3.5%

percentage error in momentum is 3%

K.E =1/2 m v ^2

K.E = m+2*v        [percentage error]

K.E = 1.5+2*2

K.E = 1.5+4

K.E = 5.5%

percentage error in kinetic energy is 5.5%

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