The potential energy U for a force field is such that U = –... | PHYSICS - THE POTENTIAL ENERGY OF A SPRING | SolveeIt | Solveeit

Today, August 19

Question

The potential energy U for a force field is such that U = – Kxy, where K is a constant –

A

$\overrightarrow { \mathrm { F } } = K y \hat { i } + K x \hat { j }$

B

$\vec { F } = K x \hat { i } + K y \hat { j }$

C

$\overrightarrow { \mathrm { F } } = K y \hat { \mathrm { i } } - K x \hat { j }$

D

$\vec { F } = K x \hat { i } - K y \hat { j }$

Answer

$\overrightarrow { \mathrm { F } } = K y \hat { i } + K x \hat { j }$

Explanation

Solution

$\overrightarrow { \mathrm { F } } = - \vec { \nabla } \mathrm { U }$ = K()