Practice portal › Work, Energy and Power › Potential Energy, Conservative Forces and Equilibrium
Asked in NEET 2013 Karnataka · Potential energy functions and force
Idea: the total energy splits into kinetic and potential, and the kinetic part can never be negative.
E=K+U(x), so K=E-U(x).
K=1/2mv²≥0, so U(x)≤ E everywhere the particle can be found.
The particle is described as moving, so K>0 strictly.
U(x)<E is therefore the region its motion is restricted to, with U=E marking the turning points at its edges.
Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.
Practise this with a timer