Question

Find the percentage error in kinetic energy of a body having mass 60.0 ± 0.3 g moving with a velocity of 25.0 ± 0.1 cm/s.​

Answer 1

Answer:

The percentage error in energy is 1.3%.

Answer 2

Answer:

1.3 %

Explanation:

The % uncertainty in mass = 0.3/60×100=0.5%

and % uncertainty in mass = 0.1/25×100=0.4%

KE =

2

1

mv

2

KE = m + 2v

KE = 0.5 + 2×0.4

KE = 1.3% uncertainty.

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