query: I don't understand why escape velocity is necessary
positive_passages.docid: 119337
positive_passages.text: Can we escape Earth's gravity slowly?
negative_passages.docid: 136184
negative_passages.text: Why we dont have "direct" velocity operator just as $p$? ( as use $p$ space not $v$? ) in quantum mechanics?
negative_passages.docid: 69081
negative_passages.text: While finding escape velocity, does human mass counts as the mass of Earth?
negative_passages.docid: 57667
negative_passages.text: Escape velocity from Earth
negative_passages.docid: 117925
negative_passages.text: What is escape velocity? In reality, how can something no longer be under the gravitational influence of something else?
negative_passages.docid: 53298
negative_passages.text: Why is momentum conserved when a ball hits a vertical wall?
negative_passages.docid: 116821
negative_passages.text: Does velocity add like vectors?
negative_passages.docid: 4986
negative_passages.text: Why do two bodies of different masses fall at the same rate (in the absence of air resistance)?
negative_passages.docid: 12172
negative_passages.text: help me understand derivatives and their purpose
negative_passages.docid: 9735
negative_passages.text: Why does a change of direction imply an acceleration?
negative_passages.docid: 97185
negative_passages.text: Conservation of energy and Doppler effect?
negative_passages.docid: 36380
negative_passages.text: Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM?
negative_passages.docid: 126447
negative_passages.text: How does velocity cause time dilation?
negative_passages.docid: 22889
negative_passages.text: Why normal acceleration doesn't bring a change in speed?
negative_passages.docid: 75259
negative_passages.text: Why is velocity squared in kinetic energy?
negative_passages.docid: 114672
negative_passages.text: Why do we use the Lagrangian and Hamiltonian instead of other related functions?
negative_passages.docid: 8567
negative_passages.text: how do I find the average velocity and instantaneous velocity?