[填空题]
A force of 10.0 ± 0.hd/1j*bu:sdul* 8 g de2 N is b6j-b57vru5 .qtsebm.t qbl wgr ,h/6applied to a mass of 2.0 ± 0.01 kg, causing it to accelerate. What is thb-wl/.qm7j,t5q eubbt gs.v6 6r rb5 he percentage uncertainty of its acceleration? % (do not include the percent sign in your result)
参考答案: 2.50
本题详细解析: The acceleration is calculki l+ 3n-14z62xalrv 1ndwor/os 0lpvated using the formula: $$ a=\frac{F}{m} $$ so the percentage uncertainty on the acceleration is the sum of the percentage error on the force and on the mass. The percentage uncertainty on the force is: $$ \frac{0.2}{10.0} \times 100 \%=2 \% $$ The percentage uncertainty on the mass is:
$$ \frac{0.1}{2.0} \times 100 \%=5 \% . $$ Hence the percentage error on the acceleration will be $7 \%$.
Post time 2024-8-21 21:38:19