An ice skater applies a horizontal force to a

20.-kilogram block on frictionless, level ice,

causing the block to accelerate uniformly at

1.4 meters per second2 to the right. After the

skater stops pushing the block, it slides onto a

region of ice that is covered with a thin layer

of sand. The coefficient of kinetic friction

between the block and the sand-covered ice is

0.28.


On the diagram in your answer booklet, starting

at point A, draw a vector to represent the force

applied to the block by the skater. Begin the

vector at point A and use a scale of

1.0 centimeter = 5.0 newtons.