Question

a car covers a distance of 5km in 20min. Find the velocity of the car in (a)km /min (b)m/s (c)m/min (d)km/hr.

Answer 1

v=d/t

v=5/20

v=1/4

(a) v = 0.25 km/min;

(b) v=5000m/20x60 s

v= 5000/1200 m/s

v= 4.16 m/s.

(c) v= 5000m/20 min

v= 250 m/min

(d) v= 2 km/20/60 hr

v= 2x60/20 km/hr

v= 6 km/hr

3