A box slides from A to B (A is at the same level as B) along a surface with friction. The speed of the box at B is ____ the speed at A.
A) Greater than   B) Less than   C) Equal to   D) Cannot be determined from the given information

The work done by gravity is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

The work done by friction is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

The work done by the normal force is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

A box slides from C to D along a surface with friction. The speed of the box at D is ____ the speed at C.
A) Greater than   B) Less than   C) Equal to   D) Cannot be determined from the given information

The work done by gravity is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

The work done by friction is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

A box slides from E to F along a surface with friction, where at F it compresses a spring and momentarily comes to rest. The speed of the box at F is ____ the speed at E.
A) Greater than   B) Less than   C) Equal to   D) Cannot be determined from the given information

The work done by gravity is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information

The work done by the spring is
A) Positive   B) Negative   C) Zero   D) Cannot be determined from the given information