Question

A particle of mass 2.5 kg moves in a conservative force field. Its potential energy curve
is shown below. From the curve, determine (a) the total mechanical energy of the
particle at x = 1.3 m if it has a speed of 8 ms−1 and (b) the minimum total energy at
which the particle can escape from the force field. If Etot = 150 J, where would the
particle have (i) zero velocity, (ii) maximum velocity