Is that right..? please tell me what is wrong in it....?
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Answered by
2
It is absolutely correct...
Meu1:
but I m confused what we have to use with 1.4 m/s or kg m/s...?
it is just m/s
in thank I sis
no its m/s×s
what
just use idea of dimensional analysis that will not allow you to put value of 7kg for Force bcz kg is not unit of force neither on earth nor in the land of aliens
just search the net for VALUE OF 1 kg Wt. you will get answer 9.8 newton so surely 7kg wt is equal to 7×9.8 newton .....then you can substitute this value in place of F in the equation F=m×a .....one can not substitute 7newton for 7kg wt. use any website and then u will get value of acc. 7m/s^2 in this problim.....plz let me know if i say wrong bcz democracy must remain at peak in otherwise democracy gets murdered
and yes if 7= 9.8 ×a then a=7/9.8 and not 9.8/ 7.......even the algebra has a wrong step so this is where even Einstein would not dare to say ABSOLUTELY CORRECT
Answered by
1
no its wrong friend f=ma 7=9.8×a
a=7/9.8
a=70/98 a=0.71m/s×s
a=7/9.8
a=70/98 a=0.71m/s×s
I mean it is totally correct
yes i am sure
I am also saying that
what
that this answer is correct
may i get answer
what is the difference bet. mass of 7kg .......and.........force of 7kgwt..........1kg weight is equal to force of 1×9.8 newton......2kgwt is equal to force of 2×9.8 newton.....3kg wt is equal to 3×9.8 newton.....so 7kg wt means a force of 7×9.8 newton.....then do the calculations and you will get answer of 7m/s^2 as acc..
plz dont allow a student to substitute 7 kg as value of force in F=m×a.....quite amazinggggggg
no
go to any web site and search value of 1 kg wt. and brother your confusion will come to end....it is a healthy discussions where we must give references not using only what we thik wont mean anything bcz physics is international enterprise not local gossip
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