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# can you guys please help me on change of subjects?

V^2(squared)=U^2+2as make u the subject

V^2=u^2+2as make s the subject

mc^2=p make c the subject

p^2=4m^2/x make x the subject

r/st= w/x^2 make x the subject

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- supensaLv 67 years agoFavorite Answer
v^2 = u^2 + 2as

v^2 - 2as = u^2

sqrt(v^2 - 2as) = sqrt(u^2)

sqrt(v^2 - 2as) = u

v^2 = u^2 + 2as

v^2 - u^2 = 2as

(v^2 - u^2)/2a = s

mc^2 = p

c^2 = p/m

sqrt(c^2) = sqrt(p/m)

c = sqrt(p/m)

p^2 = 4m^2/x

xp^2 = 4m^2

x = 4m^2/p^2

r/st = w/x^2

rx^2/st = w

x^2/st = w/r

x^2=stw/r

sqrt(x^2) = sqrt(stw/r)

x = sqrt(stw/r)

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- MercyLv 77 years ago
V^2(squared)=U^2+2as make u the subject

V^2-2as = U^2

square root of V^2 -2as = U

......................

p^2=4m^2/x

divide both sides by 4m^2

p^2/4m^2 = x

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