A 60 HP electric motor lifts an elevator with a maximum total load capacity of 2000 kg. If the frictional force on the elevator is 4000 N, the speed of the elevator at full load is close to (Given 1 HP = 746 W, g = 10 m/s2)

Question

a. 1.5 m/s

b. 1.7 m/s

c. 2.0 m/s

d. 1.9 m/s