Question

Calculate the height of the bridge​

Answer 1

Step-by-step explanation:

Given (in the -y direction):

v₀ = 0 m/s

a = 9.8 m/s²

t = 0.98 s

Unknown: Δy

Equation:

Δy = v₀ t + ½ at²

Substitution:

Δy = (0 m/s) (0.98 s) + ½ (9.8 m/s²) (0.98 s)²

Solve:

Δy = 4.7 m