A 10-kilogram body is constrained to move along the -axis

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

9. A 10-kilogram body is constrained to move along the

x

-axis. The potential energy

U

of the body in joules is given as a function of its position

x

in meters by

U(x)=6 x^{2}-4 x+3

The force on the particle at

\mathrm{x}=3

meters is (A) 32 N in +x direction (B) 32 N in -x direction (C) 45 N in +x direction (D) 45 N in -x direction (E) 98 N in +x direction