How can objects with no net acceleration gain energy?
86806
When you lift a box from the floor, the potential energy changes but kinetic energy does not change. Does it violate conservation of energy?
83770
Kinetic energy doesn't make sense
107031
Is conservation of energy only for isolated systems?
78062
Please help understanding the difference between force and kinetic energy for an object hitting a wall?
17121
Kinetic energy with respect to different reference frames
1721
How to explain the force applied on this object?
12818
In calculating work done by a constant force over a constant distance, why doesn't the subject's initial velocity matter?
20037
Do photons have acceleration?
94778
Why can't I do this to get infinite energy?
32168
How can we move an object with zero velocity?
74367
Newtonian mechanics: massless particles
115752
What are the limits of Energy-bending?
62419
Einstein equation $E=mc^2$: Does it mean an object without mass does not have energy?
4986
Why do two bodies of different masses fall at the same rate (in the absence of air resistance)?
33967
Is it possible to have a rate of change of acceleration?
105194
Quantum properties of objects with zero velocity
94615
Is the change in kinetic energy of a particle frame independent?