Answer:
The mass is inversely proportional to the acceleration so the acceleration a1 is twice that acceleration a2
![a_{1},a_{2}=\frac{a_{1}}{2}](https://tex.z-dn.net/?f=a_%7B1%7D%2Ca_%7B2%7D%3D%5Cfrac%7Ba_%7B1%7D%7D%7B2%7D)
Explanation:
The force of friction and the kinetic force make the law of mass in moving so
![F=m*a](https://tex.z-dn.net/?f=F%3Dm%2Aa)
![F=f_{m}+f_{k}](https://tex.z-dn.net/?f=F%3Df_%7Bm%7D%2Bf_%7Bk%7D)
![f_{k1}=u*m1*g](https://tex.z-dn.net/?f=f_%7Bk1%7D%3Du%2Am1%2Ag)
![f_{k2}=u*2*m1*g](https://tex.z-dn.net/?f=f_%7Bk2%7D%3Du%2A2%2Am1%2Ag)
![f_{m}=\frac{1}{2}*m1*v^2](https://tex.z-dn.net/?f=f_%7Bm%7D%3D%5Cfrac%7B1%7D%7B2%7D%2Am1%2Av%5E2)
The forces are the same however at the moment to determinate the acceleration
![a_{1}=\frac{F}{m}](https://tex.z-dn.net/?f=a_%7B1%7D%3D%5Cfrac%7BF%7D%7Bm%7D)
![a_{1}=\frac{F}{2*m}](https://tex.z-dn.net/?f=a_%7B1%7D%3D%5Cfrac%7BF%7D%7B2%2Am%7D)
are constant because they make the same motion however the difference of mass make the acceleration difference
Answer:
a) 0.002 cm³
b) 0.005 cm³
Explanation:
density d = 19 kg/cm³
Given mass m, find volume V
The definition of density is
d = m/V
so V = m/d
a) m = 38 g = 0.038 kg
so V = 0.038/19 = 0.002 cm³
b) m = 0.095 kg
V = 0.095/19 = 0.005 cm³