- 39

- 0

**1. Homework Statement**

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

**2. Homework Equations**

no equation

**3. 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?