Evaluation of formulae
We have spent some time transposing formulae and equations. We will now combine transposition with the substitution of numerical values into formulae and equations. In example 4.20 we transposed the formula s = ut +
at for a. This equation relates the distance s with the initial velocity u, acceleration a and the time t. Suppose we want to find a numerical value for the acceleration a. We may first transpose the formula in terms of a as we did earlier to give
at for a. This equation relates the distance s with the initial velocity u, acceleration a and the time t. Suppose we want to find a numerical value for the acceleration a. We may first transpose the formula in terms of a as we did earlier to give
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