Question

an object has a mass of 11.1 kg. what is the weight of the object on earth? (be sure your answer has the appropriate number of significant figures) (inclu $vec{f}_g = mvec{a}_g$ mass:50 kg weight:110 lbs mass: 50 kg weight: 42 lbs earth mars

Explanation:

Step1: Identify the formula and values

The formula for weight is $F_g = ma_g$, where $m$ is mass and $a_g$ is acceleration due to gravity. On Earth, $a_g= 9.81\ m/s^2$ and $m = 11.1\ kg$.

Step2: Substitute values into formula

$F_g=11.1\ kg\times9.81\ m/s^2$.

Step3: Calculate the result

$F_g = 11.1\times9.81=108.891\ N$.

Step4: Determine significant - figures

The mass value $11.1\ kg$ has 3 significant figures. So, the weight should be reported with 3 significant figures. Rounding $108.891\ N$ to 3 significant figures gives $109\ N$.

Answer:

$109\ N$