Find the value of s when u = 12, a = 10 and t = 4 - OCR - GCSE Maths - Question 4 - 2017 - Paper 1

To find the value of s, we will substitute the given values into the formula:

$s = ut + \frac{1}{2} a t^2$

Substituting the values:

• u = 12
• a = 10
• t = 4

This results in:

$s = (12)(4) + \frac{1}{2}(10)(4^2)$

Now calculate:

• First term: (12)(4) = 48
• Second term: \frac{1}{2}(10)(16) = \frac{1}{2}(160) = 80

Adding both terms together gives:

$s = 48 + 80 = 128$