A force of 100 N is exerted on a 50kg safe to move it across a room. Describe the acceleration (or change in velocity) and it’s value in m / s2 ?

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.