A swimmer of mass 60 kg dives into a deep pool from a high diving platform. She enters the water at high speed and then decelerates at a rate of 16 m/s2 as she travels vertically downwards in the water. The gravitational field strength is 10 N/kg. What is the swimmer's weight and the size of the resultant force acting on her as she decelerates?
Correct answer: C. Option C
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Weight of the swimmer = mg = (60) (10) = 600 NResultant force = ma (60) (16) = 960 N
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