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utkarsh7723 asked this question on School Talk

  if i throw a ball  of 1kg  with  20n force  upward  what hight if will gain (take g as 10 )

Asked by utkarsh7723(student), on 17/8/10
Answers

 ??????

Posted by vaishali12345(student), on 23/8/10

f = mxa so 20 = 1xa  so  a= 20m/s^2

the resultant accn =  20-g = 20-10 = 10m/s^2  now v=o and u =?  .....THE  QUESTION  IS  INCOMPLETE  TIME  NOT  GIVEN  !!!!!!!

 

Posted by pipudi(student), on 23/8/10

 yup, you must give the time in which that force is applied. or u hav to change the force to impulse. Say u r applying a impulse of 20Nm upward.
then you can easily solve it using  Fdt= dP

Posted by prakharcool(student), on 27/3/11
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