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A drone of a film crew rises and descends over a take. Its height above the launch pad is modelled by h = −t² + 6t, where h is the height in metres and t is the time in seconds after launch.
Find the height after 1 second.Show me the full solution
Worked solution — answer: 5h = −t² + 6t
= −(1)² + 6 × 1
= 5 metres
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