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A girl moves along the boundary …

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A girl moves along the boundary of square field of side 20 min in 80 sec.what will be the magnitude of displacement of the end of 200sec ?also Calculate average velocity?

Posted by Deepika Sharma 3 years, 7 months ago

CBSE > Class 09 > Science

5 answers

Deepika Sharma 3 years, 6 months ago

Questions is right

0Thank You

Taman Bhatnagar 3 years, 7 months ago

I don't know

0Thank You

Moksh Yadav 3 years, 7 months ago

Side of square field = 20m Perimeter =20*4=80m Time=80sec Means she complete 1 lap in 80 second, therefore 2 laps in 160 sec then half in 40 seconds... So the displacement is the diagonal of square = root side Average velocity is eaual to total time taken upon total distance travelled = 200/200= 1m/s

1Thank You

Ranjeet Kumar Pandit?? 3 years, 7 months ago

Yes please type with a correct unit and in fair manner

1Thank You

Vivek Roy 3 years, 7 months ago

Question ❓ is wrong please type carefully on units

4Thank You

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CBSE > Class 09 > Science