Hey Mathhelp, the task goes as following: " Assume your average velocity to point A is 10 km/h. What speed do you have to drive back with to have an average velocity of 20 km/h?
My attempt:
The displacement call it d is the same for both trips.
d=V1 t1 and d=V2t2, V average = d/t, so 2d/t1+t2=V and doing the algebra i eventually stumble up at 200/0 which of course is indeterminate, but what does it mean? Does it mean I calculated it incorrectly or is it simply not possible? feels like somewhere along the line it is wrong because you could always compensate by driving faster or slower.
My attempt:
The displacement call it d is the same for both trips.
d=V1 t1 and d=V2t2, V average = d/t, so 2d/t1+t2=V and doing the algebra i eventually stumble up at 200/0 which of course is indeterminate, but what does it mean? Does it mean I calculated it incorrectly or is it simply not possible? feels like somewhere along the line it is wrong because you could always compensate by driving faster or slower.