Calculate the density of each ball. Use the formula D = m/V
where D is the density, m is the mass, and V is the volume. Record your calculations in Table A of your Student Guide.

The answer is d) by requesting advice on science internet sites

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.