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when workdone by spring force is positive?

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Describe when the work done by spring force will be positive and when it will be negative in a horizontal spring mass system

Q. A particle is displaced from a position

2^i -^j -^k

(m) to another position

3^i + 2^j - 2^k

(m) under the action of a force

2^i +^j -^k

(N). The work done by the force is (in Joule):

F

acting on a particle varies with position

x

as shown in figure. The workdone by this force in displacing the particle from

x = - 1 m

1 m

F

acting on a particle varies with position

x

as shown in figure. The workdone by this force in displacing the particle from

x = 0

x = 2 m

Q. A position dependent force

\to F = (y^{2} x^i + x^{2} y^j) N

acts on a particle and displaces it from

x = 1 m, y = 2 m

x = 2 m, y = 1 m

, The work done by the force is

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