- #1

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- 6

- Homework Statement:
- Force on an object is F=(m*g/3) *cos(ω*t) in x direction. Find potential energy

- Relevant Equations:
- U=- ∫(F dx) = - ∫(F*v*dt)

U=-∫F*v*dt= -∫(m*g/3)*cos(ω*t) dt = -(m*g/3 )* (v/ω )* sin(ω*t)

except that according to the official solution, I should be getting positive sign instead of negative. Am I doing something wrong?

except that according to the official solution, I should be getting positive sign instead of negative. Am I doing something wrong?