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two identical balls are dropped from height of 2000m at difference of 2sec. ​a) find the speed with which this first ball hit the ground. ​

two identical balls are dropped from height of 2000m at difference of 2sec.
​a) find the speed with which this first ball hit the ground.
​

Grade:11

1 Answers

Vikas TU
14149 Points
6 years ago
Dear Student,
  1. speed =v
    v2=u2+2aS (u=0 since it was dropped, a = +g, S=2000m)
    =>v2=2xgx2000
    =>v=200m/s
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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