Answer:
10m/s
Explanation:
Average speed is the change in distance of a body/object with respect to time. Speed is expressed by the expression;
Speed = [tex]\frac{change\ in\ distance}{change\ in\ time}[/tex]
speed ΔV = ΔS/Δt
ΔV = S₂-S₁/t₂-t₁
given S₂ = 50m, S₁ = 40m, t₂ = 5s, t₁ = 4s
average speed = 50-40/5-4
average speed = 10/1
average speed = 10m/s
average speed of the object is 10m/s
