Question

Free-body Diagrams - 01

Due in 21 hours, 49 minutes

A free-body diagram is a major tool we use to help analyze problems involving forces. To create a free-body diagram, place a dot on the paper to represent the object (or objects) of interest and then draw all of the forces acting on that body. The force vectors are drawn with their tail on the dot. A major step in any of our force problems is correctly identifying all of the forces acting on an object. There are three possible free-body diagrams shown at the top of the problem. Select the appropriate free-body diagram for each of the situations listed below. If there are two items mentioned, select the free-body diagram for the first object mentioned (book, block, you, ball).

A [One arrow pointing down]
B [One arrow pointing down, on down, one left, one right]
C [One arrow pointing down, one pointing up]

A

B

C
  A book is sitting stationary on a table.

A

B

C
  A block is being pulled by a string to the right at a constant speed. There is friction between the block and the table.

A

B

C
  You are standing stationary on a flat floor.

A

B

C
  A block is hanging from a string and is not accelerating.

A

B

C
  A ball is flying through the air. Ignore air resistance (assume projectile motion).

Incorrect. Tries 1/10 Previous Tries

Answer 1