Q126 · Practice questionComplex familiar3 marks
QUESTION 126 (3 marks)
A rescue capsule is launched from a high platform at and above the horizontal. Air resistance is negligible.
a)[1 mark]
Determine the initial horizontal and vertical velocity components.
b)[1 mark]
Determine the time until the capsule reaches ground level.
c)[1 mark]
Determine the horizontal range.
WORKED SOLUTION
3 marksPractice marking scheme
ANSWER
Range .
Worked solution
Part (a): and .
Part (b): Vertical motion: , giving (positive root).
Part (c): Range .
Part (a): completes the requested reasoning and obtains a correct result.
Part (b): completes the requested reasoning and obtains a correct result.
Part (c): completes the requested reasoning and obtains a correct result.
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