Question

A car covered a distance of 450 km in 9hrs. Calculate its speed ​

Answer 1

Explanation:

d= 450

t= 9

s= d/t

450/9

= 50 Km/hr

Answer 2

Given , Distance (s) = 450km.

Time (t) = 9 hrs.

Speed ( in km/hr) =

$\frac{total \: distance}{total \: time}$

$\frac{450}{9}$

= 50 km/hr.

450 km = 450 × 1000m

= 450000m.

9 hr = 9× 60 × 60 s

= 32400 s.

Speed = 450000 / 32400 = 13.88 m/s.

Speed :-

The measurement of distance travelled by a body per unit time.

SI unit of speed :-

meter/ second ( m/s)

Distance :-

The actual path or length travelled by an object during its journey from initial position to final position is called as distance.