Easy -1.2 This is a straightforward algebraic rearrangement requiring only basic manipulation: subtract ut from both sides, then divide by (1/2)t². It's simpler than average A-level questions as it involves just two steps with no complex algebraic structures, making it easier than typical multi-step problems.
Question 7:
7 | 2 ( s−ut )
[a=] o.e. as final answer
t2
( s−ut )
[condone [a=] ]
0.5t2 | 3 | M1 for each of 3 complete correct
steps, ft from previous error if
equivalent difficulty [eg dividing by t
does not count as step – needs to be
by t2]
( s−ut )
[a=] gets M2 only (similarly
1t2
2
other triple-deckers) | 3