Question

A softball and a volleyball collide with equal speed, and they accelerate at the same rate. What must be true about the masses of the object.
a. the softball has more mass than the volleyball.
b. the softball and the volleyball have equal mass.
c. The volleyball has more mass than the softball.
d. it is impossible to compare the mass of the softball and the volleyball.

I think the answer is A. a softball has more mass.