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(a) Units, b) Prefix, c) vectors is have both direction and magnitude, d),…
a) Units
cm (centimeter)
mm (millimeter)
kg (kilogram)
N (netwon)
km (kilometer)
A (ammeter)
m (meter)
V (volts)
s (seconds)
hr (hour)
b) Prefix
μ (micro)
n (nano)
c(centi)
M (Mega)
d (deci)
G (giga)
m (milli)
k (kilo)
c) vectors is have both direction and magnitude, d)
clockwise
anti-clockwise
Newton
f) c = √a^2 + b^2
e)
g) sine rule: (a / sinA) = (b / sinB) = (c / sinC)
cosine rule: a^2 = b^2 + c^2 = 2bc(cosA)