Acarpenter working at a construction site mistakenly dropped his hammer from a height of 125m. how long does it take to reach the ground?

It all depends how heavy the hammer is

Explanation:

5.05 s

Explanation:

Given:

Δy = 125 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(125 m) = (0 m/s) t + ½ (9.8 m/s²) t²

t = 5.05 s

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible