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mayankdevnaniBest 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
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
@amistre64 @ParthKohli @ajprincess @aroub @UnkleRhaukus @experimentX @ganeshie8 @gerryliyana @CliffSedge @mahmit2012
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.2
Work = force × distance. Plug in your t=2s to solve for s, then multiply.
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
@phi have a look
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
\[S=\frac{2^2}{4}=1\]
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
right @ajprincess and @phi
 one year ago

phiBest ResponseYou've already chosen the best response.2
yes. s is 1 meter force is 6 N work is 6 Nm
 one year ago

phiBest ResponseYou've already chosen the best response.2
of course Nm is a joule so 6 joules
 one year ago

phiBest ResponseYou've already chosen the best response.2
Q14 does not say the force is 6 N.
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
it says 3J but you say 6J
 one year ago

phiBest 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
 one year ago

phiBest 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
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
so my question is also same @phi
 one year ago

phiBest 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....
 one year ago

mayankdevnaniBest ResponseYou've already chosen the best response.0
what do you mean? @phi
 one year ago

phiBest 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?
 one year ago
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