Question

A puppy finds a rawhide bone and begins to pull it with a force, Ft. The free-body diagram is shown. A free body diagram with 4 force vectors. The first vector is pointing downward, labeled F Subscript g Baseline = negative 8 N. The second vector is pointing right, labeled F Subscript t Baseline = 6 N. The third vector is pointing upward, labeled F Subscript N Baseline = 8 N. The fourth vector is pointing left, labeled F Subscript f Baseline = negative 4 N. The up and down vectors are the same length. The right vector is longer than the left vector. Which describes what happens to the bone? It begins to move toward the right. It stays in static equilibrium. It stays in dynamic equilibrium. It begins to move toward the left.

Answer 1

Answer:

• It begins to move toward the right

Explanation:

The given information can be summarized in this way:

• First force vector: Fg = - 8N (vertical down)

• Second force vector: Ft = 6N (horizonal right)

• Third force vector: FN = 8N (vertical up)

• Fourth vector: Ff = - 4N (horizontal left)

Following Newton's second law, net force equal mass times acceleration:

• Net force = mass × acceleration

To predict the motion, you apply Newton's second law in each direction (vertical and horizontal)

• Vertical force balance:

        Net vertical force = 8N - 8N = 0. This means there is not motion in the vertical direction.

• Horizontal force balance:

         Net horizontal force = 6N - 4N = 2N. This means there is a net force of 2N to the right, which lets you predict that the bone starts to accelerate to the right; this is, the bone begins to move toward the right.