Whether the acceleration of the object’s center of mass due to the applied force is same, larger than, smaller than or zero when the force were applied at the center of mass.

Question

A square metal sheet 2.5 cm on a side and of negligible thickness is attached to a balance and inserted into a container of fluid. The contact angle is found to be zero, as shown in Figure a, and the balance to which the metal sheet is attached reads 0.42 N. A thin veneer of oil is then spread over the sheet, and the contact angle becomes 180°, as shown in Figure b. The balance now reads 0.41 N. What is the surface tension of the fluid? x Your response differs from the correct answer by more than 10%. Double check your calculations. N/m a b

Answer 1

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Chapter 12, Problem 12.3OQ

To determine

Whether the acceleration of the object’s center of mass due to the applied force is same, larger than, smaller than or zero when the force were applied at the center of mass.

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