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mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
A body of mass 6 kg is under a force of 6 N which causes displacement in it given by \[S=\frac{t^2}{4}m\].The work done by the force in 2 s is
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
@amistre64 @ParthKohli @ajprincess @aroub @UnkleRhaukus @experimentX @ganeshie8 @gerryliyana @CliffSedge @mahmit2012
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.2
Work = force × distance. Plug in your t=2s to solve for s, then multiply.
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
w=6*s
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
@phi have a look
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
\[S=\frac{2^2}{4}=1\]
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
right @ajprincess and @phi
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.0
yup perfect:)
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
yes. s is 1 meter force is 6 N work is 6 Nm
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
sure @phi
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
of course Nm is a joule so 6 joules
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
Q14 does not say the force is 6 N.
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
it says 3J but you say 6J
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
the question says "6 kg under a force that causes a displacement..." we need to find F, using F= ma we need a use d = 1/2 a t^2 we know d and t so we find a, then F and finally W = F d
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
@Aperogalics
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
d (or s) in this case is 1 m t is 2 sec 1 = 1/2 a 2^2 a= 1/2 m/s^2 F= ma = 6*1/2 = 3 N W = F d = 3N * 1m = 3 Nm = 3 J
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
so my question is also same @phi
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
your question says: mass 6 kg is under a force of 6 N ... you gave the force as 6 N so that is what I would use....
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
what do you mean? @phi
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.2
Q14 requires that you find the force... Your 1st question may be inconsistent? i.e. 6 kg and 6 N don't mesh with the displacement?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.0
thnx..... @phi
 2 years ago
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