Find the percentage error in ke off a body of mass m=60+-0.3 and moving with velocity v = 25.0+-0.1 cm/sec
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14
What are the units of mass??
Let unit of mass kg
K.E = 0.5 mv^2
= 0.5 × 60 × (25 × 10^-2)^2
= 1.875
Percentage error is calculated as
ΔK.E = K.E × [Δm/m + 2Δv/v] × 100
= 1.875 × [0.3/60 + (2 × 0.1/25)] × 100
= 2.4375%
Percentage error in kinetic energy is 2.4375%
Let unit of mass kg
K.E = 0.5 mv^2
= 0.5 × 60 × (25 × 10^-2)^2
= 1.875
Percentage error is calculated as
ΔK.E = K.E × [Δm/m + 2Δv/v] × 100
= 1.875 × [0.3/60 + (2 × 0.1/25)] × 100
= 2.4375%
Percentage error in kinetic energy is 2.4375%
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1
Answer:1.3℅
Explanation:
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