# Calculate the percentage increase in mass

1. Nov 18, 2012

### ASidd

1. The problem statement, all variables and given/known data
Calculate the percentage increase in the mass of an apollo rocket as it escapes from the Earth's gravity at 11.2 kps

2. Relevant equations

11.2 kps = 11, 200 m/s

E= mc^2

mv= mo/ sqrt (1- v^2/c^2)

mv= mass of the object relative to stationary frame
mo= proper mass
v= velocity of the object

3. The attempt at a solution
No idea how to do this

2. Nov 18, 2012

### voko

Percentage increase is $\frac {m_v - m_0} {m_0} 100 \%$.