A baseball is moving in the air along the customary parabola. Ignoring air drag, where is the force on the baseball zero?

Question

A baseball is moving in the air along the customary parabola. Ignoring air drag, where is the force on the baseball zero?

Select one:

a. nowhere

b. at the top of the parabola

c. where it is about to impact

d. just when it has started upward

Answer 1

The baseball is constantly under the force of gravity, which is non-0 and is (for all practical purposes) the same along its trajectory.