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rearranging formulae
hi,
I've been given some rearranging formulae questions but i can do most of them. Except two which are ,
1. E=mgh+1/2mv². make m the subject of the formula
and
2. s=1/2(u+v)t make u the subject of the formula
could you show the working out please
thankyou
I've been given some rearranging formulae questions but i can do most of them. Except two which are ,
1. E=mgh+1/2mv². make m the subject of the formula
and
2. s=1/2(u+v)t make u the subject of the formula
could you show the working out please
thankyou
Reply 1
E = mgh + 1/2 mv^2
E = m(gh + 1/2 v^2)
m = E/(gh + 1/2 v^2)
s = 1/2(u+v)t
2s = (u+v)t
2s/t = u+v
u = (2s/t) - v
E = m(gh + 1/2 v^2)
m = E/(gh + 1/2 v^2)
s = 1/2(u+v)t
2s = (u+v)t
2s/t = u+v
u = (2s/t) - v
Reply 2
2.
s = (u+v)t/2
2 = (u+v)t
(2s)/t = u + v
(2s)/t -v = u
s = (u+v)t/2
2 = (u+v)t
(2s)/t = u + v
(2s)/t -v = u
Reply 3
joshy123
OP
thank you guys !!!
Reply 4
nah fam
Reply 5
wait yeh fam sry bruv
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