Question

The percentage error of measurement of mass and speed is 2% and 3% respectively. How much will be the maximum error in the estimation of kinetic energy obtained by measuring mass and speed

Answer 1

GIVEN :

percentage error in mass =2%=2/100

percentage error in speed = 3%= 3/100

K. E. = 1/2*m*v^2

therefore,

the error in measurement of K. E

ΔK.E = Δm + 2*Δv

K.E m v

= 2/100 +6/100

= 8/100

= 8%

Answer 2

Answer:

Explanation: see the pic for concept