Vector calculus — Question 105
Original QCE Vault practice · 1 mark
Q105 · Practice questionSimple familiar1 mark
QUESTION 105
A projectile is launched from level ground at 25 ms−1 at 40∘ above the horizontal. Taking g=9.8 ms−2, its horizontal range is approximately (A)49.1 m (B)55.4 m (C)62.8 m (D)72.3 m WORKED SOLUTION
Answer C
1 markWorked solution
R=gu2sin(2θ)=9.8252sin80∘≈62.8 m. Selects the correct option.
[1 mark]Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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