What is the weight of the Earth?

How high does a rocket have to go above Earth's surface before its weight is half of what it is on Earth?

• How high does a rocket have to go above Earth's surface before its weight is half of what it is on Earth? thanks

• Answer:

  that depends ... what is the weight density of its fuel and what is the burn rate it is using to get to altitude? at a high enough burn rate, the weight of the rocket will be reduced by half long before the force of the earth's gravity on the initial total mass is cut in half. heck, if the required sustatined burn rate is long enough, it could reach your metric just by jettisonning the first stage of a three stage burn. [hey, are you a North Korean trying to figure out the right burn timing to fix your three-stage rocket? hmmmm....]