The work done on the object is 160 Joules
Explanation:The velocity, v = 5 m/s
The time, t = 4 seconds
The distance traveled by the object:
Distance = Velocity x Time
Distance = 5 x 4
Distance = 20 m
Force = 8 N
Work = Force x Distance
Work = 8 x 20
Work = 160 J
