Question

A 480 m long train takes 24 seconds to cross an electric pole . Find the speed of the train km/hr

Answer 1

Step-by-step explanation:

speed =distance /time

=480/24

the speed will be 20

Answer 2

Answer:

Step-by-step explanation:

LENGTH OF THE TRAIN = DISTANCE TO BE COVERED , S = 480 M

                                                                                                   = 480*10⁻³ KM

                                                                                                   = 0.480 KM

TO CONVERT M TO KM MULTIPLY BY 10⁻³

TIME TAKEN ,T = 24 SECONDS

                         = 24/60*60

                         = 0.0066 HOURS.

SPEED = DISTANCE / TIME TAKEN

           = 0.480/0.0066

           = 72.72 KM / H.

ALTERNATIVE METHOD:

FIND THE SPEED IN M / S

                      V = 480/24

                         = 20

THEN MULTIPLY BY  18/5 TO CONVERT M/S TO KM/H.

                          = 20*18/5

                          = 4*18

                          = 72 KM/H

HOPE THIS HELP*S.