Question

Express each of the following in m s-1
(a) 1 km h-1
(b) 18 km min -1​

Answer 1

(a) 1 km h⁻¹ = 1 × ( 1000/60 × 60 )

= 5 / 18 m s⁻¹

= 0.27 m s⁻¹

(b) 18 km min⁻¹ = 18 × ( 1000/60 )

= 3 × 100

= 300 m s⁻¹