Recent content by Ehsan Abedian

Thanks But I can't calculate the time. Maybe I don't have enough knowledge. Can you show me the solution? Thanks a lot

Homework Statement A car is moving in a road and its average speed is 40 km/h. Then it moves back in that road by 60 km/h speed. What is the average speed of this car? ( The answer is not 50 km/h ) Homework Equations Average speed= d/tThe Attempt at a Solution I can't solve this. I get 50...

Hello I'm Ehsan Abedian. I'm 15.Also I'm very beginner in Physics. But I love Physics. Thanks