Mechanics> A stone is projected vertically upwards f...

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

Sankili Mani , 3 Years ago

Grade 7

4 Answers

Parzival

Last Activity: 3 Years 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

Last Activity: 3 Years 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

Last Activity: 3 Years 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

Last Activity: 3 Years 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