Why are velocity and kinetic energy not proportional?
4821
Why does kinetic energy increase quadratically, not linearly, with speed?
48979
Work done by gravity on falling object does not seem to equal change in mechanical energy
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
103009
$E=mc^2$ resembles non-relativistic kinetic energy formula $E_K = \frac{1}{2}mv^2$?
139580
Relationship between impact crater properties and kinetic energy?
12734
Why isn't average speed defined as the magnitude of average velocity?
42186
When is the Hamiltonian of a system not equal to its total energy?
53798
The relation between acceleration and inertial force
4143
How can momentum but not energy be conserved in an inelastic collision?
89929
Can the coefficient of static friction be less than that of kinetic friction?
137250
What happens to the rotational kinetic energy?
22160
Why does a perpendicular force not change speed?
18144
Does a nonzero Poynting vector mean that there is propagation of energy?
149780
Force as change in momentum vs. change in velocity
26439
The problem of instant velocity
40618
Does kinetic friction increase as speed increases?
39546
What is the difference between these two ways to calculate average velocity?