Question

1.IF THE FORCE OF GRAVITY ON MARS IS 3.8 M PER SEC SQUARE,THEN WHAT WOULD BE THE WEIGHT OF THATOBJECTON MARS WHICH HAS A MASS OF 10 KGS ON THE EARTH .
2.WHAT WOULD BE ITS WEIGHT ON EARTH.
3.FROM THE ABOVE DATA ANALYSE WHAT WOULD BE YOUR WEIGHT ON MARS AND BY WHAT PERCENTAGE.

Answer 1

$$\begin{gathered} \left(1\right) \\ \mathrm{Mass}\mathrm{on}\mathrm{mars}=\mathrm{Mass}\mathrm{on}\mathrm{earth}=10\mathrm{kg} \\ \mathrm{Weight}\mathrm{on}\mathrm{mars}: \\ \mathrm{W}=\mathrm{mg} \\ =10\times 3.8 \\ =38\mathrm{N} \\ \left(2\right) \\ \mathrm{Weight}\mathrm{on}\mathrm{earth}: \\ \mathrm{W}=\mathrm{mg} \\ =10\times 9.8 \\ =98\mathrm{N} \\ \left(3\right) \\ \mathrm{Let} \\ \mathrm{Mass}\mathrm{of}\mathrm{the}\mathrm{person},\mathrm{m}=50\mathrm{kg} \\ \mathrm{Weight}\mathrm{on}\mathrm{mars},\mathrm{W}=\mathrm{mg} \\ =50\times 3.8 \\ =190\mathrm{N} \\ \mathrm{Weight}\mathrm{on}\mathrm{earth},\mathrm{W}\text{'}=50\times 9.8 \\ =490\mathrm{N} \\ \mathrm{Percentage}: \\ \%\mathrm{ge}=\frac{\mathrm{W}}{\mathrm{W}\text{'}}\times 100 \\ =\frac{190}{490}\times 100 \\ =38.8\% \end{gathered}$$