A cargo sled is projected up a rough inclined plane. It passes a point A A\,A with speed 12 m s-1 and decelerates with constant acceleration. It passes a point BBB, which is 48 m further up the plane, exactly 5 seconds5\text{ seconds}5 seconds after passing AAA.
Calculate the velocity of the sled as it passes BBB.
2.4 m s−12.4\text{ m s}^{-1}2.4 m s−1
7.2 m s−17.2\text{ m s}^{-1}7.2 m s−1
9.6 m s−19.6\text{ m s}^{-1}9.6 m s−1
16.8 m s−116.8\text{ m s}^{-1}16.8 m s−1
Practise OCR GCSE Physics Motion with exam-style questions for Foundation and Higher tier. 97 questions, matched to the OCR GCSE Physics (J249) specification and written in Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.