Find in terms of ##h## when ##P## comes instantaneously to rest

[Steve4Physics]

This looks nice! interestingly, the MS did not envisage this approach. Does a student get full marks by using this approach? This question is from As level Mechanics Paper.

You get full marks in A-level (and no doubt other) examinations for a correct alternative approach. (I write as someone who has worked for examination boards, marking A-level papers, in the past.)