1. 1.3 TRANSPOSITION OF FORMULAE
1. Transpose the formula vut −= to make u as the subject.
Rearrange each of the following formulae to make the quantity shown as the subject.
2. v = u + at , u
3. v2
= u2
+2as , s
4.
2
at
2
1
vts −= , a
5. p =2(w + h) , h
6. Change the subject to b for
2
102
bca
a
+
=
7. Change the subject to s for 222
2asuv −= .
8. Express t as a subject of the formula
2
2
atu
s
+
= .
9. Given that
1n
23nH
−
+= ,
(a) write n as the subject of the formula.
(b) calculate the value of n if H = 8.
10. Given that the volume of a cylinder hrV 2
π= . Make r as the subject, then find the
value of r if V = 42cm3
, h = 3cm and π= 3.142 .
Mariana21/7/2013