Question

find percentage error in the measurements of mass of an object is 20.+-0.3gm
​

Answer 1

Answer:

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.