derive the expression :
W= Change in KE from v^2-u^2 = 2as
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Answered by
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We know that
v^2 - u^2 = 2as
multiplying both sides with 1/2 m we get
1/2mv^2 -1/2 m u^2 = 1/2 m2as
= 1/2 m (v^2 - u^2) = ma x s
=F×s
ie Change in KE = W
v^2 - u^2 = 2as
multiplying both sides with 1/2 m we get
1/2mv^2 -1/2 m u^2 = 1/2 m2as
= 1/2 m (v^2 - u^2) = ma x s
=F×s
ie Change in KE = W
Answered by
0
We know that v^2-u^2=2 as
multiplying both by 1/2 we get
1/2v^2 - 1/2u^2=1/2×as
then 1/2 (v^2-u^2)=as
therefore change =
KE=W
multiplying both by 1/2 we get
1/2v^2 - 1/2u^2=1/2×as
then 1/2 (v^2-u^2)=as
therefore change =
KE=W
komi1:
plz mark as brailest I need it
your answer is wrong. KE= 1/2 m v^2
Not 1/2 v^2
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