- #1

- 127

- 0

The problem is..

the mass of MArs is 0.107 times Earth's mass and its raduis is 0.532 times Earth's raduis. how does the escape velocity on Mars compare to the velocity on Earth?

i did this..

Vof escape = square root of 2G M(mars)/r(Mars)

Vof escape is proportional to the square root of M(mars)/r(Mars)

Vof Mars/Vof Earth = square root of 0.107x M(earth)/0.532x r(earth)

square root of M(earth)/r(earth)

Vof Mars/Vof Earth = square root of 0.107x M(earth)/0.532x r(earth) *square root of r(earth)/M(earth)

Vof Mars = 0.448*Vof Earth

but the answer in my book is .488 x V of Eath... im not sure if im right or the book is right

the mass of MArs is 0.107 times Earth's mass and its raduis is 0.532 times Earth's raduis. how does the escape velocity on Mars compare to the velocity on Earth?

i did this..

Vof escape = square root of 2G M(mars)/r(Mars)

Vof escape is proportional to the square root of M(mars)/r(Mars)

Vof Mars/Vof Earth = square root of 0.107x M(earth)/0.532x r(earth)

square root of M(earth)/r(earth)

Vof Mars/Vof Earth = square root of 0.107x M(earth)/0.532x r(earth) *square root of r(earth)/M(earth)

Vof Mars = 0.448*Vof Earth

but the answer in my book is .488 x V of Eath... im not sure if im right or the book is right

Last edited: