Erika rolls a ball down a slope with an initial velocity of 4 m/s and accelerates at 0.5 m/s2 for 6 seconds. What is the final velocity? 33 m/s 7 m/s 4.5 m/s 10 m/s Question 25 (Mandatory) (1 point) Greg, mass 100 kg, stands on a scale, which reads in Newtons, in an elevator. If at one particular instant the scale reads 880 N, then how could the elevator be moving? speeding up going up O slowing down going up O slowing down going down O constant velocity