Aball is moving at a speed of 5 mi/h along a frictionless surface. it will continue moving at this speed as long as (select all that apply)
a) something keeps pushing it because it requires a force to continue its motion
b) balanced forces act up on it because an unbalanced force will change its motion
c) something keeps pulling it because it requires a force to continue its motion
d) no forces act upon it because it’s inertia will allow it to continue moving at a constant velocity