The System in the Figure Consists of a Steel Ball

question 101

Multiple Choice

The system in the figure consists of a steel ball attached by a cord to a large block of wood. If the system is dropped in a vacuum, the force in the cord is

• A) zero.
• B) equal to the difference of the masses of B and W.
• C) equal to the difference of the weights of B and W.
• D) equal to the weight of B.
• E) equal to the sum of the weights of B and W.