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Distance travelled by a free falling object in the first second is: a) 4.9m b) 9.8m c) 19.6m d) 10m​
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14 votes
14 votes
Distance travelled by a free falling object in the first second is: a) 4.9m b) 9.8m c) 19.6m d) 10m​

User WannabeArchitect
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1 Answer

18 votes
18 votes
  • Time=1s=t
  • Acceleration due to gravity=g=9.8m/s^2
  • Distance=s

In free fall


\boxed{\sf s=-(1)/(2)gt^2}


\\ \sf\longmapsto s=-(1)/(2)* 9.8(1)^2


\\ \sf\longmapsto s=-4.9(1)


\\ \sf\longmapsto s=-4.9m

  • Take it positive


\\ \sf\longmapsto s=4.9m

  • Option a is correct
User Zetavolt
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