A-LevelMathematicsMechanics9709/43 · Oct/Nov 2020 · Q13 Marks
A particle P is projected vertically upwards with speed v ms¯¹ from a point on the ground. P reaches its greatest height after 3 s.
- (a)Find v.[1]
- (b)Find the greatest height of P above the ground.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2020). The mark or mark type is shown in brackets.
- [1] Use v = u + at (or equivalent suvat) with v = 0, a = –g and t = 3
- [1] Using v² = u² + 2as with a = −g, v = 0 and u = value from 1(a), or equivalent suvat method
- [1] Greatest height is 45 m
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