Physics, asked by Himakhi6233, 1 year ago

Akl drove s car with speed of 20km/h wle going to s college when he returned to s home along the same route the speed of the car is 30km/h calculate the average speed of the car during entire the journey

Answers

Answered by anand1232
1
 Let the distance travelled by Akhil be s km .

Time taken by Akhil while going to the college = t1 = s/30 hr

Time taken by Akhil while coming from  the college =t2 = s/20 hr

Total time taken = t1 + t2 =t = ( s/30) + (s/20)

Total distance travelled = 2s

Average speed = Total distance travelled /total time taken

                             =    2s/ [ ( s/30) + (s/20)]

                              = 2 / (1/12)

                            = 24km/hr

Hence the average speed of the car = 24km/hr

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