Question

A bus travels a distance of 50 km in 45 min. calculate its speed in (a) km/min, (b)m/s

Answer 1

Answer:

Explanation:

DISTANCE TRAVELLED ,D = 50 KM.

TIME TAKEN,T = 45 MIN

                        = 45/60

                        = 9/12

                        = 3/4 HRS.

SPEED = DISTANCE / TIME TAKEN

[1] SPEED = 50/45

                = 1.11 KM/MIN

WHICH IS ALSO = 45/(3/4)

                           = 45*4/3

                           = 15*4

                           = 60 KM/HR

[2] SPEED = 60*5/18

                 = 16.66 M/S

NOTE:

TO CONVERT KM/H TO M/S * BY 5/18.

TO CONVERT M/S TO KM /H * BY 18/5.

HOPE THIS HELPS.