a car travel at he speed of 30km/h from point A to point B and return back at the speed of 50km/h to point B to point A.find
-displacement of car
-distance travelled by car
-average speed of car
NischaySaxena:
distance is 80
avg speed is 40, not 37.5
Answers
Answered by
4
1. Displacement is defined as the minimum distance between initial and final point.
As the car returned to it's original position so initial and final positions are same.
So, Displacement = 0m
2. You have provided the speed of the car. You must also provide the time period for which the car travelled, to find out the distance between point A and B.
3. Average speed = (total distance/ total time taken)
Savg = (d+d)/((d/30)+(d/50))
Savg = 2d/(8d/150)
= (2dx150)/8d
= 300/8
= 37.5 km/h
As the car returned to it's original position so initial and final positions are same.
So, Displacement = 0m
2. You have provided the speed of the car. You must also provide the time period for which the car travelled, to find out the distance between point A and B.
3. Average speed = (total distance/ total time taken)
Savg = (d+d)/((d/30)+(d/50))
Savg = 2d/(8d/150)
= (2dx150)/8d
= 300/8
= 37.5 km/h
to write answer kya hai please boliya na
see the answer now, I have updated
is it cool now?
thanks very much
but what is the distance travelled by car
uske liye time must be given
We can't find distance unless we find out the distance AB, or unless we know the time taken to cover distance AB
Similar questions