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A stone is projected vertically upwards from the ground to a height of 30 m.if it reaches the point of projection after some time,then the distance and displacement of the stone are

A stone is projected vertically upwards from the ground to a height of 30 m.if it reaches the point of projection after some time,then the distance and displacement of the stone are
 

Grade:7

4 Answers

Parzival
26 Points
one year ago
they said it reaches to point of projection after some time which means it returns to the same place 
so displacement is zero 
 
and distance travelled is 60 m because upward journey 30 m and downward journey 30 m
total distance = upward distance travelled + downward distance travelled
Wyclife Obenda
15 Points
one year ago
For the vertical projection ,distance covered to reach max height is 30m, since distance is a scaller quantity
But remember that displacement is a vector quantity and so it has got both magnitude and dirrection so 
Displacement =-30m    The negative indicate the reversed motion of the stone
Wyclife Obenda
15 Points
one year ago
For the vertical projection ,distance covered to reach max height and back again is 60m, since distance is a scaller quantity
But remember that displacement is a vector quantity and so it has got both magnitude and dirrection so 
Displacement =-30m    The negative indicate the reversed motion of the stone
Ayush Kumar
32 Points
one year ago
When we project an object vertically upwards and it returns to the ground then it's distance is 2H(in this case H=30m therefore distance travelled=60m)
But if we talk about displacement it is zero because we have again came to the position where we started its like you started your journey from your home and returned to your home then your displacement is 0

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