3. If the procedure used in Experiment 3 had been repeated with a stack of unwrapped bricks, the amount of force required for the stack to be pulled across the table at the low speed most likely would have been closest to which of the following?

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

If two and a half bricks are used, then the force used is between 2-3 bricks. Therefore, according to table 3, it is between 7.1 N and 10.8 N, so the selection of A is 8.9 N.