20. if the potential energy of a body is v) = (*-4x + 4), the point of stable equilibrium is given by (a) x =4 (b) x=2 (c) x=-2 (d) x=0

20. If the potential energy of a body is V) = (*-4x + 4), the point of stable equilibrium is given by (A) x =4 (B) x=2 (C) x=-2 (D) x=0