Question

Asked Oct 26, 2019

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Consider an object of mass *m* = 4 kg on a frictionless table. The object experiences a repulsive force *F* = *a*/*x ^{2}* +

Write an expression for the work done by the repulsive force on the object as it moves from an initial position of *x*_{1} to a final position of *x*_{2}.

If the object starts at a position of *x _{1}* = 8.5 m apart, how much work, in joules, is required by an external force to bring it to a position of

If the object starts at rest at a position *x _{3}* = 1.3 m and is released, at what speed

Step 1

Given:

Mass of the object, m = 4 kg

Repulsive force, *F* = *a*/*x ^{2}* +

Step 2

The formula of work done:

Step 3

Calculation for the expression of work done:

Pluggin...

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