Question

An elevator travels downward at a velocity of 5 m/s over a time of 20 seconds (s). What is the displacement (Δx) in meters (m)?

A) 4 m
B) 100 m
C) 15 m
D) 25 m

Answer 1

b. 100
speed=distance/time
5m/s=distance/20s

Answer 2

B) 100 m
is the correct answer because for 20 seconds the elevator is traveling 5 meters for each second. You multiply 20x5.