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08 – Substitute

Substituting into Equations: 

Substitute means replacing a letter with a numerical value. This can be in a formulae and expressions, including scientific formula.

Given that v = u + at,

find v when t = 1, a = 2 and u = 7;

v = 7 + 2 × 1 = 9


Your Turn:

Q. Calculate v = √(u² + 2as)

with u = 2.1, s = 0.18, a = –9.8

Give you answer to 2 d.p.

Enter your answer here:

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