Saturday

November 22, 2014

November 22, 2014

Posted by **Dwayne** on Monday, May 2, 2011 at 11:35am.

The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2

Please answer the question fully and please give any helpful websites, thankyou.

Also I know calculus.

- Math BOBPURSLEY HELP HELP HELP HELP -
**bobpursley**, Monday, May 2, 2011 at 11:39amThen set the initial KEnergy equal to the potential energy at the surface of EArth.

1/2 mv^2= GMe*m/re

solve for escape velocity, v

- Math BOBPURSLEY HELP HELP HELP HELP -
**Dwayne**, Monday, May 2, 2011 at 11:48amv^2 = 2Mg/r + (u^2 -2Mg/d )

Is that right

- Math BOBPURSLEY HELP HELP HELP HELP -
**bobpursley**, Monday, May 2, 2011 at 12:00pmWhy did you make it so complicated?

1/2 m v^2=GMe m/re

v^2= 2GMe/re

take the square root of each side.

**Answer this Question**

**Related Questions**

MATH HELP - Law of Gravitation-find an expression for the magnitude of the ...

Maths and Physics - Law of Gravitation- Find an expression for the magnitude of ...

Math And Physics - Law of Gravitation- Find an expression for the magnitude of ...

MATH HELP - Law of Gravitation- Find an expression for the magnitude of the ...

Math And Physics - Law of Gravitation- Find an expression for the magnitude of ...

Math - find an expression for the magnitude of the initial velocity that a ...

Math HELP PLEASE - find an expression for the magnitude of the initial velocity ...

Gravitation help..........thanks - A projectile is shot directly away from Earth...

physics - A projectile with mass of 139 kg is launched straight up from the ...

Math - A projectile is fired with an initial velocity of v0 feet per second. The...