Question

Fill in the blank by suitable conversion of unit:

3.0 m s^–2= ______ km h^–2

Answer 1

3.0 m s^–2= 3.888 × 10⁴ km h^–2

Explanation:

1 m = 10^–3 km

Again 1 s = `1/3600 h`

1 s^–1 = 3600 h^–1

1 s^–2 = (3600)² h^–2

∴ 3 m s^–2 = (3 × 10^–3 km) × ((3600)² h^–2) 

= 3.888 × 10⁴ km h^–2