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Vector calculus — Question 68

Original QCE Vault practice · 6 marks

Q68 · Practice questionComplex unfamiliar6 marks

QUESTION 68 (6 marks)

A projectile is launched from level ground with speed 30 m s−130\ \mathrm{m\,s^{-1}}. It must pass through the point (40,15)(40,15), where coordinates are in metres. Take g=10 m s−2g=10\ \mathrm{m\,s^{-2}} and ignore air resistance. Determine the two possible acute launch angles, to the nearest 0.1∘0.1^\circ.
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