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## Homework Statement

An object is moving along some path. the total work done on the object during this process is zero.

## Homework Equations

no equation

## The Attempt at a Solution

A the speed of an object has decreased.

B the speed of the object may have changed.

C the object must be moving in a circle

D the velocity of the object must not have changed

E the speed of the object has not changed

F the velocity of the object may have changed

I chose answer D and E. From what I understand so far work is zero when the Force is perpendicular to the displacement.

would speed and velocity changed, when the work of an object is zero?